Thanks for the Metro info. Amazing you get such high FPS with your resolution.

Stalker COP - there is a demo version with benchmarking tool. It kills all cards on the MIN FPS except for the 580 so far.
Just Cause 2 - Is there a benchmark tool? There is but you need to find it online...

CoD MW or MW2 would work.

I think you need to OC your cpu some more. I bet you have so much more headroom in there until you crank in something crazy like 16xAA!