[Null]

Actually its just TF2, and i believe valve said its coming on the source engine. and that s a BIG i'm waiting for. Valve said a while back there will be a surprise shortly after the release of HL2 for thoes who are dissapointed CS:S is the only multiplayer.
some rumors say that surprise is either an official HL2 multiplayer, or TF2.

(altho a HL2 multiplayer is coming either way. all it needs are maps cuz the mulitplayer is actually in the game already.)

Weapons Factory is another im waiting for. its basically the same as TF.
Day of Defeat, and some others. just soooo many im excited over.

the phisics engine just brings so much possibilities to these mods, im excited to see what people think up.