Your motherboard has 2 PCI-E 2.0 slots, but the second only runs at x4. This won't be such a problem since you're going to xfire 5770, but you will see some performance hit. if you want, you could get an 890gx motherboard to get x8/x8 lanes, but that's up to you. You'll be spending another $30 or so, but definitely something to think of especially if you want to upgrade to more powerful gpus later.
I was hesitant about getting the 955 and overclocking it to 965 as well, but I went with the 955, entered the bios, up'ed the multiplier by x1 and got it running at 965 levels. It's really really easy.
Good choices on the psu and hhd, though I'm not sure you need that much power even with 2x5770. Couldn't hurt though.
Thanks for the advice guys. I agree with your suggestions and have modified my build to include both the ASUS M4A89GTD and the Coolermaster Hyper 212. But as it seems to always do with builds, one upgrade makes you consider another. I could drop another$40ish and go to:
As much as I feel dirty considering it, is it really worth going up to the Intel chip? Ive seen the charts and articles and it seems clear the Intel is the better pure performer. But how much of that boost is really noticeable?
Thats the old sabretooth and doesnt have USB3/SATA3.
In strategy games with lots of units and games that make good use of multiple cores like BFBC2 and GTA4 the intel CPUs do better. In MMOs, which tend to not use multiple cores well, you see less difference.