i was thinking i should semi-retire my current Power Macintosh (see sig) and that a G5 would make a great computer for college. i personally think that this is a great deal, a friend is selling it, and i wouldn't mind upgrading the RAM or GPU myself. now, about the GPU. am i limited to what the Apple specifications say? $700 - Mac G5 Power Mac 1.8ghz G5 512mb of RAM 150 GB Hard Drive 17" Apple Studio Display QWERTY Apple Keyboard Apple Mouse Pro thanks for your opinions!