Yeah, Bad Company 2 looks really good with it. Burnout Paradise is good too, you can really crank up the depth and the car really feels like it is off the screen.
A lot of games work well, some with some minor issues but overall a lot do work good. Metro 2033 is good too, almost forgot that.
Not a game, but a good thing to show off to others is the Dream Aquarium screensaver program.