One of my best friends is trying to sell me his MBP: 2.2ghzC2D, 15", only 128mb video. ,2gb ram, 250gbHD-upgraded from 120gb The price? $500. It sounds good at first glance but if I go to Microcenter I can get a brand spanking new macbook (current generation btw) for $800. I don't reeally needed but it would be a nice upgrade to my daughters imac. Any suggestions?