This product rocks so far! Prices have been coming down, and I wanted an SSD that had the same capacity as my internal hard drive.
I have a 15-inch Macintosh unibody laptop (mid 2010) running OS X 10.7 "Lion" with a 500G internal hard drive. A friend put a roughly 120G SSD in his, and put the old HD in place of the DVD-ROM using an adapter you can find on Amazon. (He put the "superdrive" in an external USB enclosure, also available on Amazon.) (I decided I like having an internal DVD drive.) After research, I bought a $12 2.5" USB SATA enclosure and put the SSD in it. I have OS X on my "Time Machine" external backup drive. After cleaning up my internal drive to get rid of junk (using free program "Disk Inventory X" to find big wasteful files,) I booted from the backup drive so my internal drive was static and could be copied to SSD. Then I cloned my internal drive to the SSD using a program I bought called SuperDuper (which has always performed well for me.) (You might try Carbon Copy Cloner too.) For a day, I ran my system from the cloned version via USB choosing it as the startup disk. I also did a backup of it. Then I put the SSD inside my Mac in place of my old HD (my unibody Mac opens with three long and a bunch of short screws on the bottom. (While in there, you may as well insert the maximum RAM too.) I re-booted with no external drives attached--blazingly fast! (And I don't even take advantage of the 6GB transfer because my Mac is old--but if I get a new one this SSD drive is going into it.) Finally, there is a free program called TrimEnabler that enables TRIM (which tells the SSD which blocks the OS is not using, so it can pre-erase them for later use instead of having to first erase and then re-write (because SSDs need to write to blank blocks instead of over-writing written blocks.) TrimEnabler saw my SSD and allowed me to enable TRIM without using Terminal to modify system files. ("Lion" and >10.6.8 permit TRIM support.) The main reason for this review is to help others with Macs do what I did with shortcut info and less research.