I'd deffenitly go with Red Faction. If your a hardcore multiplayer gamer, but also likes the adventure of Single Player along with a First Person shooter than this game is deffenitly right for you. Seeing that you've played RTCW i'm guessing you may like the WWII Genre. Well than I'd go with Medal Of Honor. ~Predd~
I can highly recommend Medal Of Honour, even if u do need a monster system to run it at max detail. The Omaha Beach landing is one of the most atmospheric levels I've had the pleasure tof playing in a long while.
Serious Sam 2 is worth a look, although its a bit repetitive, great fun for killing an hour or so (and you will do a LOT of killing in an hour - man, that game doesn't know when to let up !
Battle Realms is another I'm playing at the moment. If you like RTS games then I would suggest you'll love this. Plays as good as it looks.
Ep, glad to see you come back and tidy up...did want to ask a one day favor, I want to enhance my resume , was hoping you could make me administrator for a day, if so, take me right off since I won't be here to do anything, and don't know the slightest about the board, but it would be nice putting "served administrator osnn", if can do, THANKS