Yea i saved up enough to buy Cod4 but i heard FarCry2 is also good plus if i buy FarCry i will have enough money left to buy Assassins Creed which is a Platnum 360 game. Which deal should i go for?

CoD 4 has a much higher population on it yet then Far Cry. Far Cry I would say the multiplayer is where that game is at. The single player is fun and all but very repetitive. Assassin's Creed was an amazing single player game with outstanding graphics, but you do the same thing over and over and over till the actually assassination comes which is the really only fun part after playing that game for some time.
CoD4 on the other hand has outstanding single player and multiplayer. I would def say CoD 4.