I was experimenting the other night with the screenshot capabilities in Halo 3, trying to generate some 3D scenes by taking two successive shots and moving the camera slightly between them. I was impressed at how well they ended up coming out; I'm looking at them on a Samsung 3D DLP TV and most of them look pretty amazing.
I saved a bunch of them as .jps files.. Check 'em out.
(Due credit: I got the idea after someone sent me this lower-res gallery: Stereo Halo Gallery