Just a heads up that the new Crysis demo that is out is worth checking out.
It's basically Farcry 2, but the game engine is one of the best I have seen.
Stunningly done and a hoot to play as well. Fully destructable environments.. so when you get into a firefire around some flimsy tin sheds, lobbing some grenades will flatten the place.. also in the jungles.. the trees will be shattered with gunfire... think of the "turn jungle to a meadow scene from Predator 1"
however the demo is 2GB in size and you will NEED a beefy mofo of a machine to play it well.
Enjoy.. I did