All the above are good comments.
Also, if you don't plan on using Crossfire X, even the Corsair HX620 will be enough. Legit Reviews did their 4870X2 CrossfireX review with a Corsair HX620, and it was pulling over 791W from the wall.
Corsair HX620W Power Supply Running 791W - Can't Break It!!
You don't need DDR1066 RAM. Since you're using a Quad, if you do plan on overclocking it, it'll be hard for a Quad core to exceed 500 FSB. Take a look at some DDR 800 RAM kits. Those should be able to overclock up to DDR 900 fairly easily.
I'm not sure how much Newegg charges the OCZ Vendetta 2 for, but up here it's around $30 after price matching and rebates. The Vendetta 2 is a great cooler. I absolutely LOVE it.
Do you really need a Blu-Ray DVD Burner? If not, then just get a good quality DVD-burner.