Umm.... this really isn't this kind of site. I am not sure how multi threaded Crysis is but I have a pretty damn top of the line system and I am not sure I could run it maxed out with full resolution (which I assume to be 2560 x 1600). The fact that Nvidia refuses to create a driver that allows 8800 GTX's to run SLI when you have 3 of them on a single system doesn't help either.

Perhaps try www.tomshardware.com and see what they have to say about things?

If you want to play it with wet dream performance, you are probably looking at the new 45 intel quad cores coming in 1Q 2008 and at the very least a 8800GTX, which is about the fastest gaming card out there right now.

The CPU is going to push $1200+ at release and the 8800GTX is still about $500 each. (Much less than it was at release though). So figure $3000+ for a top of the line system if you build it yourself right now. I would not personally suggest a Dell. If you don't have the know how, Alienware (which is now owned by Dell) is a reasonable bet but you spend far too much for what you get.