Another good gaming build or not???

I'd get a Phenom II x4 955, Cheaper $20 DVD/CD drive, and probably a cheaper motherboard, all for a 5770 (there are some brands for ~$140 and have rebates) instead of a 5670. I think using that 635W PSU with the 5670 is a bit overkill too, since the 5670 is made the consume little power. Otherwise, if you can afford it, go for it!