1. Which 1366 proc? It is missing. I guess it will be the i7 930.
2. EVGA mobo? I would say, no. Get ASUS, MSI, or Gigabyte.
3. 2 Raptors in RAID? If that is your plan. 2 Raptors in RAID is slower than a fast SSD. Drop them and get an SSD or two instead. OCZ Vertex 2 or Crucial C300 is good.
As long as its a good 850W unit then i'd say it would be fine, but it might be worth getting maybe a 900/950W unit for safety. As far as i can tell the OP only wants 2 GPU's so i'm not sure if this is a useful point. 2 GTX 460's is all you need, make sure there's good airflow to them and overclock.
At this budget and judging on the initial choice of hard drive, it might be worth the OP investing in a good Sandforce based SSD for OS and critical apps to be installed and a good 1TB HDD for the rest of storage.
The build looks great. However, instead of getting two GTX 460's and sealing your upgradability shut, i'd get one GTX 480/70 and then a year or two from now when they get cheaper you can pick up another one. You'll still have great gaming performance while giving you great options of upgrading. Everything else looks good.