Well, seeing how HL2 will be coming out in about 3-4 months, i woulda thought more people would be talking about it.
Ive seen older threads with their "cool" screen shots of the game ....... but no trailers.
For a game like this, i dont think screen shots would do any good.
soooooooo..............after hours of searching, i was able to find this site
http://www.3dgamers.com/games/halflife2/ . and o...m....g!!!!!! They have a couple gameplay movies and trailers. After you see this, you will understand why you need an elite computer to play this game.