mostly gaming but i believe he'll be doing some light video editing as well... and the case is preferred but he'd be willing to change if a better one is suggested... i just went with it though, since he's got such a large budget. And thanks for the suggestions on the PSU's
For that expensive a motherboard you had better get pci-gen3.
If you wanted to buy it now, I'd take off one of the video cards, get a cheaper case, an i5-2500k, a cheaper motherboard. I'd then put that into upgrades, like a 7990 or an ivy bridge. The single 7970 would sell quickly if upgrading to 7990(or 2 ha) in a couple months. Keep in mind the 7990 will likely be bottlenecked by pci-2.0.
In a $1000 build I wouldn't go with anything less than 2TB of HD space, so you should have at least that. Smart idea on the SSD though.
I realize it's a customer so spending up all the budget may be what you want, but that $1000 saved could go along way to upgrading the system in 3->24months.
Despite my criticisms it's a good build for the budget.
I'm not gonna go with the 7990... i agree with angaddev, it's not worth it. 2 7970's will run anything thrown at them, no need to have anything more then that. And if in the future my customer wants to upgrade it'll be pretty easy to add a 3rd