Gaming is the most demanding of all pretty well, 2 gig of ram will benefit you now and in the future, if you do go the 2 x 512 sticks that is still fine, you can just put 2 more in the other slots to make up the 2 gig in the future, that will just limmit your ram overclock and at stock it will be running slower than the ram specs but you can sort that out easy enough, so I am going with what is mentioned above now, go 2 x 512 sticks, I just dont want you to have the grief with 4 sticks like I have got.