TF2, oh yeah
I would say it's pretty rare for me to get really excited about new video games coming out. But there are actually a bunch that I'm looking forward to in the next few months. Metroid Prime 3(which is already out), Smash Brothers Brawl, Mario Galaxy, and Zelda Phantom Hour Glass are all quite exciting.
But today I just gave in and purchased orange box so I can play the beta of Team Fortress 2. I loved TFC along with Half-Life and its spawn. I have only the highest expectations for Team Fortress 2. You will too after you watch this video: