Competitions for TigerLAN 9

Battle for Middle Earth (PC)
Halo 2 (XBox)
Burnout 3 (PS2)
Super Smash Brothers Melee (Gamecube)

Also there is a toss up between Half-Life 2 Deathmatch (PC) and Unreal Tournament 2004 Deathmatch (PC). Vote in this poll to have a say in the matter.

Aside from these competitions and the usual onslaught of games that are played, we know the following games will also be played:
Battlefield 2
Starwars Battlefront
Marvel vs Capcom (and probably the rest of the Capcom/SNK series)

Plus live demos of F.E.A.R. and a few other upcoming games.