Nvidia's incorporation of OpenCL, Tessellation, and various other technologies give them a huge +1 on ATi. Maybe with the release of HD6K, ATi will catch up.
i'm not going to be doing an overclocking, it confuses me to much and i'm afraid i'll mess up my computer...but i'm going to be playing mmo's rpg's rts's and some fps also i'd like to be running on high game setting at 1680 x 1050 resolution...the price isn't up for debate, its a birthday present, i just get to choose what it is.
also i'm going to me running windows 7 if that matters