I punched the serial number for this unit in the Apple Store web site. You can check out the info here https://selfsolve.apple.com/agreementWarrantyDynamic.do?sn=W80520M1AGW Details I know about it are that it is a 15" has the Lion OS and Windows 7 loaded on it along with the CS5 master creative suite for windows, processor I7 2.6GHZ. It is a mid 2010 and the apple care warranty is good through Jan 2014. What else should I be looking for and what kind of a price range do you think I should be looking at? New to all of this and appreciate any input. Thanks.