Hi, I don't know which iMac to buy, the "high end" 21,5" or the basic one. I really don't need more hdd space, so for me 1Tb is unnecessary, I also don't need the 3,2 Ghz processor. So my question is, how much difference will I notice in games ? Is the 5670 much better? Is there any FPS comparison anywhere ? Will use the iMac for Starcraft 2 and WoW.