I purchased this camera to use as a cheep wireless IP webcam. It offers the ability to hook into your network either with the wireless WSP functionality or with an ethernet connection. It is fairly small with the camera being about the size of an iphone (maybe about 80% that size). The base allows for you to mount it in multiple settings, but be clear, this is a very simple design...not rocket science by any means. The ac power cord is about 4 feet long.
Setup: I ran into an issue when I was trying to set up the wireless connection. I could not get my camera and wireless router to talk at all. I called tech support (the free version) and they were useless. The rep had no clue about the specific devise and it is clear that he was just in a large call center that probably supports dozens if not hundreds of products. I had NO problem when I hooked it into my network via an ethernet cable. The set up application runs very nicely and easily gives you the option to select either wireless or wired set up as needed.
Back to my wireless problem. I decided that I would pay $32 for D-Links premium support for 30 minutes of help...I rolled the dice, as they do not guarantee they will fix your problem for your investment, but I had a feeling my issue was something simple with my network configuration...and I was right. The rep was great, she remoted into my pc, checked out my wireless settings on my router and determined that I had a bad character in my site name. None of my other wireless products had a problem with the character, but the D-Link cam did not like it. She changed the name of my wireless network, we restarted the router,and instantly the camera linked in wirelessly.
I am absolutely convinced that if I had not had a dash in my wireless network name, then this wireless set up would have been a breeze. So, I can't place blame for this issue on D-Link, but it was interesting that no other wireless device I use had a problem with the naming convention of the network.
Once that hurdle was cleared, it has been smooth sailing. I really like the ease of use and the functionality included with the set up...through a web interface, you can control video size, audio (yes it has a mic and sends the audio over IP in realtime), you can set motion detection, auto emailing on detection, and it even has a built in ftp server to send the images where ever you like.
Simple camera that does exactly what it says...it provides decent video and audio wirelessly to your network and then you can do with it what you want.
Pros: Simple, straight forward, nice setup application used on your pc, D-Link offers free remote viewing via their web portal MyD-link, and they also offer a free iPhone app (no audio on the iPhone app).
Cons: Seems somewhat fragile...I would not want to drop it form more than a foot off the ground. A fall from any higher seems would shatter it.
Overall I think this is a really good value.

((Update Dec. 18, 2011)
So I have had this camera in service for over a year now...and it has been installed outside, under an eave of my house. It has no additional protection from the elements...just its own casing and the few inches of cover provided by the eave. It has been subjected to all the weather Atlanta receives in a year...heat 95+, cold 9, wind, rain, humidity, etc. The verdict...GREAT..not one issue with it. So, I just purchased three more for outdoor viewing around the house. I put one into service yesterday and had NO problems with setup at all. Used the auto network connect feature on the camera and my Netgear router and it hooked in within a minute. Great little camera and with the price dropped to $70, I think it will be hard to beat it.

This is a review for the DLink DCS-930L Day camera - NOT the low light version (DCS-932L).

Updated 8/18/2013: Edited to add detailed setup instructions.

Original Review:
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This is the easiest way I found to monitor our home remotely.

I was pleasantly surprised with how quickly everything came together - I had the camera installed and transmitting in less than 15 minutes. I plugged the camera into a power outlet, popped the CD in (on a Windows 7 64-bit computer), entered my wireless network credentials, set up a DLink account from which to monitor the camera, and presto!

What works well:
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1. The lens is reasonably wide angle - it can cover most of a normal size room.

2. It has audio! And it works very well.

3. Image quality is decent - you can recognize people, but it isn't broadcast quality by any means.

4. Moving the camera kills the feed for a couple of minutes, but it's back on the network in less than 2 minutes.

5. The iPhone app is cool! We were able to watch the camera just as well on an iPod Touch. As another reviewer suggested, Tiny Cam (the free version is sufficient) worked great for me on Android.

6. The admin interface for the camera is stellar. You can control the refresh rate and resolution of the camera; the saturation, brightness, and contrast of the image; and the volume for the audio. You can even turn off the annoying LED light on the front of the unit!

7. Setting up motion detection is also really easy. You just pick the sensitivity of detection, and click on parts of the frame where you want detection to trigger. That's it! When motion is detected, you can ask the camera to email you the images.

8. Setting up email notification is simple too. I looked up the SMTP address and port for Yahoo, entered my email address and password, and was soon receiving emails from my camera!

9. It connects via Wireless-N and has an awesome range. It connects without problems to my router from across the house, through multiple walls.

10. This device supports WPS. What this means that you can automatically configure it to access your router, with just a couple of button presses. (However, due to security issues with WPS, I recommend that you turn off WPS on your router.)

What doesn't:
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1. The camera does not work in low light conditions as it does not have infrared capabilities. You need at least a 40W lamp for it to be functional. This tends to be a bit annoying for me, as the camera becomes fairly useless once evening falls. The infrared-capable DCS-932L may be a better choice in this regard.

2. No pan/tilt options on this camera. For me, this is not as big a deal as the low light issue, especially given its wide angle of view.

3. The camera feels a bit delicate, but should hold up well given that it isn't going to be handled much. It did take a couple of falls and has survived. (Updated 8.18.13: My camera's stand has since broken. Thank goodness for duct tape.)

4. The camera needs to be plugged into an electrical outlet. Its short power cord does limit the locations where it can be placed.

Conclusions:
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Overall, this was plug and play installation at its best.

I also can't believe there is a simpler way to get all of this functionality in a single unit. This device is extensively customizable. I was particularly impressed that the designers had thought about putting in a way to turn off the blinking LED in the front of the camera. This LED is a very useful diagnostic tool (it flashes amber when it is setting itself up, and green when it is broadcasting), but it drove me nuts, until I found this option in the admin panel.

Hope this helps.

Happy Monitoring!

Continue reading if you want to setup your camera manually. While this is more involved, it also means you need not install any additional software. However, you do lose the ability to record video.

Updated Aug 18, 2013: Manual Setup
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Before you begin, remember that you only have one publicly visible IP address - and this is allocated by your ISP, and is assigned to your router. Inside your network, your devices are allocated private IP addresses, in the range 192.168.x.y. These addresses are termed "private" because they only make sense within your own internal private network.

A computer outside your network only recognizes the public IP address of your router. It has no idea how many devices you might have on your internal network.

So how do you access your camera from outside your home network?

The answer is to use port forwarding to uniquely identify one of your internal devices, and make it addressable over the Internet. You do this by reserving a particular port (say, 90), and telling your router that any attempt to access that particular port on the router's public IP address, should actually be sent directly to the internal device (this camera) identified by a given private address (say, 192.168.1.5).

You will need to add a new port forwarding rule to your router for each camera that you need to expose externally.

Setup the camera
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1. Connect the camera to your router with an Ethernet cable
2. Login to your router, and note the camera's internal IP address (Attached Devices page)
3. Navigate to that IP address in a browser to access the camera's web server
4. Login to the camera as "admin" with a blank password (default)
5. Verify that you can watch the camera's video
6. In the camera's interface:
....Setup tab > Wireless Setup menu > Wireless Settings section: check Enable; set SSID; Security Mode and your network key
....Maintenance tab > Admin menu > Admin Password Setting: set a new password (important!)
....Maintenance tab > Admin menu > Server Setting section: LED Control=Off
7. Disconnect the Ethernet cable. You should now connect wirelessly.

Setup the router
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1. Add a DHCP Address Reservation for the camera's internal IP address.
That way each time your camera connects to your router, it will always get the same IP address.

2. Add a Port Forwarding Rule:
Use Service type=TCP/UDP. External start/end port=90. Internal start/end port=80. Internal IP address=your camera's reserved address.

To verify your port forwarding rule works, use the external IP address (shown on your router's status page) and forwarded port, e.g., of the form http : // a.b.c.d:90 (remove spaces). When a request comes in to your router at port 90, it will now forward it directly on to port 80 at your camera's IP address.

That's it!

Advanced Manual Setup:
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Here are a few advanced options for using this camera.

Dynamic DNS:
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If your IP address changes frequently, or are tired of remembering numeric addresses, register at a dynamic DNS provider, such as dyndns.org. My router, a WNDR4500, actually keeps dyndns informed whenever my public IP address changes. I can now use a text-based domain name and it will be automatically converted of my IP address.

Setup Email
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Your camera can automatically send you emails. To do that, it needs to know information about your email provider as well as your username/password credentials. The steps below are for gmail, but you can look up the equivalents for other email providers.

(also see Abhilash's notes in the comments below)
Setup tab > Mail menu
....SMTP Server Address: smtp.gmail.com
....SMTP Server port: 465
....Sender email address: your sending email address at gmail
....Receiver email address: the email that should receive sent emails
....User name: the part of your sending email address before the @gmail.com
....Password: your email password
....Use SSL-TLS

Click the Test Email Account.
Verify the status of the test, at Status > Device Info > E-mail Test.

Motion detection:
#############
You can have the camera email you either on a schedule or if motion is detected in a configurable hot zone.

Setup > Motion Detection
....Motion Detection: Enable
....Detection Area: click the squares of interest

Setup > Mail
....select "Enable emailing images to email"
....select "Motion Detection"

Finally, we're done :)

Good luck!

I'm pleased with this little camera. It does what I want it to do. The motion detection sends me an email when something triggers it at the front door. My purpose was to avoid the Jehovah Witnesses. I can now look on my phone, ipad or computer to see who is at the door without getting caught peaking out the window. I get an email when UPS/FEDEX drop a pkg at the door so I know to get it when I get home, also if someone decided to steal it they'd be caught. Home invaders would automatically have their picture taken and emailed to my wife and myself so if we were to loose that battle, they would get caught. Thinking about getting a second one. I'm attaching a screenshot of the android app.

**It was a pain to setup on a mac but with an old PC I had I was able to set it up and get my DLINK account setup properly.