I'm looking to build a system in the $700-$800 range. It won't be a gaming system per se, but I'd like to have the option open just in case. The 700-800 should include a monitor with HDCP, as I plan on eventually putting a blu-ray player in here. It doesn't need to include an OS, I'm planning on using the Windows 7 Beta in it for a while. Crossfire support would be nice. My budget is slightly flexible, but I'm hoping to keep it not too far out of the 800 range if possible. Here's my current build: https://secure.newegg.com/WishList/MySavedWishDetail.as...
It comes out at 730 after MIRs and shipping.
Compare your list to the one used in the System Builder Marathon: $625 Gaming PC : Higher FPS
They explained why they selected each part. And there's a good chance it would get better performance in gaming over the items you've selected so far. It's about the same price (without monitor) as your list.
I've done some more research and determined that AMD is to be avoided even at that price, with the exception of Phenom II. So now I'm more or less going to stick to the $625 build, just using an Antec Three Hundred case instead. My choice now is to go with a e5200 and a 4870 or a e7400 and a 4850. I'm inclined to go for the faster processor as I won't be gaming very much, but if the e5200 can overclock just as well i would be inclined to get that.