F.E.A.R. is a rather nifty looking FPS in the Vivendi pipe-line. The E3 movie isn't hi-res, is in MPEG4 (you could use Quicktime), but is definately worth a look.
The pace was very lively, the graphics and physics look good, and I was very impressed by the genuine horror feel (especially the end), which was very reminiscent of Katsuhiro Ôtomo (creator of Akira) and the chilling Ringu. F.E.A.R. has a more modern horror feel than Doom III, which seems to be stuck in the 1980's.