So many cool games, it is hard to decide on what specific ONE is going to own my life for next couple months.
I would say:
1. Planetside (a massively multiplayer first person shooter from the people that brought you Everquest).
2. Empire Earth (from the lead designer of Age of Empires - a D3D RTS that lets you start from the stone ages and move all the way up to future technologies. It's like combining Civilization and Age of Empires and giving it hardware based rendering).
3. UFC 2 for the Dreamcast. That's not the real name, but I am too lazy to go to Gamers.com and find out what it is really called. I live and love the UFC, Pride, K1, etc. This game had be addicted for months. The new one is going to have fighters that have actually WON fights (Tank Abbot, Randy Couture), not people who have lost within their first minute of their first UFC fight.
4. TFC 2. I have been waiting too long for this. Damnit - someone go to Valve and make them release another arse kicking game.