As you may or may not know, registration for team tournies isn't till the Expo itself. The team games are Halo 2, Mario Kart Double Dash, Mario Tennis, and Splinter Cell Chaos Theory.
This thread is for those of you who don't currently have a team. You can post up a "want-ad" if you will, then it's up to you to figure things out via PM or in this thread (either's fine but I recommend PM for a more direct means of communication). Then post who's in your team and your team name if you want, and I'll update the list of people who have a team already.