I'm a Mac newbie as of about a year ago so any help is appreciated... http://dallas.craigslist.org/mdf/sys/3311370325.html He's asking $1150 with almost a year left on Applecare. If my research is correct, this would have cost about $2k new plus tax. Is this a great deal, Good deal, fair deal? With the install disks can I just reformat and reinstall like it's fresh from the factory? Thanks much.