Well bought COD 4 and it looks really nice.
The GFX are great, looks alot like GRAW(2) but it plays very smoothly.

So even for the not top PC is this game very good playable.

Big downside atm is that MP got some problems with connections (time out and connection interrupted).

Also it is hard to kill ppl on a hill (hill glitch?)
Overall very nice to play, shame that the price to buy it is higher then the average game.