if 512MB isn't low, i might consider buying the 21.5 inch. i mean, i have a laptop that as 1GB of video memory.. i can't afford much more than 1999 for the high end mac. what do you guys think? EDIT: i'll be playing games like diablo 3, starcraft 2 and Portal and maybe borderlands 2. Also i will be using the machine to do some homework and stuff, not just gaming.