Yeah the 7600GT is one of my favs. Its better than anything GeForce 6 put out, even the 6800Ultra.
Anything can run CS, and this'll let you run WoW at extreme resolutions. FEAR on High shouldn't be a problem, but Oblivion will eat it alive on High. Oblivion on 1280x1024 with Med settings should be fine and still look excellent. Realize that you're talking about the most graphically intensive game out there.