[MikeDubreuil]

What's exciting about the two is that they concentrate on two different technologies. I've played the leaked alphas of both games and I've played about 6 hours of Doom 3.

Half-Life 2:
The graphics aren't the big draw here, it's the physics engine. The way you can interact with almost every object is just amazing. Items in the enviroment act just like they would with the gravity on Earth. You can also play with almost everything (toss stuff around).

Doom 3:
I am so hooked on this game. The graphics and the sound are the key aspects. The game is so realistic that it's actually scary to play in a dark room. My heart pounds while playing as if I was watching a scary movie. The game draws you in and when you least expect it a new monster shows up, sending you jumping out of your seat in suprise. The game does an excellent job fading the music in and out depending on the situation. A constant menacing laughter sends shivers down your spine. Bottom line: Get Doom 3 and play it with the lights off between the hours of 11pm and 4am... you'll love it.