I'll wait and see how it runs on my PC before I get excited. I've got a kick-ass rig, but I'm afraid that Crysis 2 might just put it to shame, something that no game has been able to do yet.
Then you have no need to worry. Crytek confirmed Crysis 2 will have lower system requirements than Crysis and Warhead.
Not because it's less of a graphical powerhouse but because it takes place in a much easier to render setting. Vegetation is a bitch.