OK, for those who need a little more info here goes, sorry I'm new at this. First of all my budget is pretty much maxed with this config, I have changed a few items and I plan to run Vista 64 bit. I am trying to build a decent gamer that I can upgrade in the future as more funds become available.
Antec Twelve Hundred Black Steel ATX Full Tower Computer Case
KINGWIN Mach 1 ABT-1000MA1S 1000W ATX / BTX SLI Certified CrossFire Ready 80 PLUS BRONZE Certified Modular Active PFC Power Supply
+1 on Proximon's suggestions. His build is much better and offers the option of further upgrades in the future.
The Corsair 750TX is a much better PSU than that Kingwin 1000W one. Nvidia chipsets are not nearly as stable as Intel ones. A 4870 1GB card is much better than SLI 9600GT's and leaves the option open to add a second card down the road. You can't get much better than that G.Skill Black RAM. The Sunbeam cooler is also cheaper and cools better than the Zalman one.
I'd also suggest swapping that 500GB HD for a 640GB model. The 640GB drives have more dense platters and are considerably faster than the 500GB models.