As much as I would like to buy both my funds won't allow me.
Tossing up between Forza 3 and the new COD.
I have played the Forza 3 demo and its pretty sweet. I heard that COD is the shit but the single player is very short. The last game I got that I really loved was GTA4. The only reason I'm shying away from COD is that when I play GTA online most of the people are right assholes.
learn the maps and be quick. A big help for me as with halo, is to know where the enemy is going to respawn, so you have a advantage on em. Just keep playing and upgrade ur guys to have the red dot aimer, so much better then just the raw gun.