you could also try mohaa (medal of honor allied assault) - it looks AWESOME and is very detailed. In fact, the fps counter actually shows the number of triangles being drawn, etc... it's really challenging for your machine. My machine (in my sig) gets 95-30fps, but I've got all effects maxed, max circles, detail, distance, particles, all that crap. Plus 4x AA and 32x anisotropic filtering. You really have to tweak your settings to get it right though, I was dropping down to 14fps yesterday until I disabled sub-pixel accuracy, etc. And that was without anisotropic and AA!! So, your video card settings (and drivers) make a HUGE difference.