I recently aquired most of a hand-me-down SLi box for the purposes of playing fallout 3. My old 3GHz P4 and it's nvidia 6800GT were no longer up to the challenge. Fallout 3 is awesome. A bit small compaired to Oblivion perhaps, but without the repetitiveness that made Oblivion feel a bit low at times...

...Anyway, I've just tried the F.E.A.R. 2 demo, which I found incredibly engaging for a First Person Shooter. It's actually scary. Horrorshow. I might have to buy it. I fear I'm turning into a gamer. :-/