Hi, I am selling my friend's broken macbook. His sister spilled yogurt on the keyboard, causing it to break. It is a 13 inch macbook pro. The disks that came with it say "Mac OS version 10.6.3, AHT version 3A192, and 2Z691-6621-A" I don't know how helpful that information is... This is the model that came up when I searched the serial number through apple.com: http://support.apple.com/kb/SP583 I am wondering if there is something I should buy to perhaps fix the computer in some way that might make it more valuable to the buyer... Or should I just sell it as is? All suggestions, questions and comments are welcome and appreciated!