If the heaviest thing u r gonna run is Starcraft 2 the a core 2 Duo would work just fine, get at least 4 GB ram and at least a 9400 graphics card, your biggest issue is gonna be finding one under 650 with a good graphics card and not an on-board that shares system memory. AMD vs INTEL is more of a preference and same with Nvidia and ATI. Most ones with a decent graphics card will have the matching CPU and RAM. So start by finding one with the right card and right price and the rest should follow.



But personally.......Get a MAC