Looking for a good webcam for your Mac? Look no further than iSight. The Rev. B model, which I have, was a snap to hook up. I used one of the included stands to mount the camera next to my Mac. Initially, I had reservations about using the stand, based on reports I've read on the web. The stands come with a self-adhesive mount, and I wasn't about to 'stick' my camera to a surface. But my worries were easily dismissed, because the stand itself does a fantastic job of supporting the iSight. So, no messy adhesive backing had to be used.
The iChat program (bundled with OS X Panther) works really well with the camera. I've used it to chat with my sister who lives a few states away. With appropriate third party software, you can also use the iChat as a UPC barcode reader to scan in your books, CDs, and DVDs. The quality of the image generated by the camera is more than acceptable. Colors are rich and not washed out. On a broadband connection, frame rates were impressively high. Audio only chats will work as well, as the iSight also houses a built-in microphone. Audio quality is clear, too, as my sister has confirmed. I have yet to chat with another iSight'er to fully perform a two-way video chat, but from what I've seen so far, the iSight works very well. Highly recommended.