For quite some time, these games have been bothering me by not being in my collection:

Assassin's Creed (PC April 9th)

-If these people don't screw up this game like they infamously did to another (I'm drawing a blank here), this is a must-have for me. I absolutely love sandbox type action-adventure-puzzleish games like this!

Unreal Tournament 3

-I have EVERY other Unreal/Tournament game, except the sucky 2003, which isn't worth my time. 2004 is the best, and it's an amazing game, and I want badly to play this new game in the series! I've played it and seen it played many times, and I must say it exceeds expectations. Now that I have a quad-core, my PC can handle it. I'm downloading the demo as we speak! Not that I need any convincing, in my time playing it I was blown away.

World in Conflict

-If it's as good as all the scores it's been given, and as actiony, I definitely want a piece of it.

Gears of War

-It's a violent, gory, chainsaw-on-an-SMG shooter! What else could I want? Amazing graphics? Oh, wait.

That's it for PC games!

UPDATE: I have the demo installed, and it's great! It runs flawlessly at max settings on my PC!