For the peeps that didn't try the latest Medal of Honor: Allied Assault Multiplayer Demo, I urge you to do so. This game just rocks and it boasts graphics that I never thought my ol' GeForce2 Mx could handle that well. And the gameplay is just terrifying (try the new map you can download separately: The Hunted, it owns).
This game owns, with UT and RTCW.
Go take a look at http://www.pcgameworld.com and grab the 133Mb demo NOW!