Don't use a Rosewill PSU. It may look fancy and all, but you should stick to Corsair, XFX and Seasonic. They are much greater quality on the inside, and will not explode your PC.
I would recommend that you look at the new Ivy Bridge-E CPUs, instead of the old Sandy Bridge-E.
The i7-4930k should be around $555, while the i7-4820k should be around $310. (Yes, the 4820k is actually a 'k'-CPU this time!)
Very high end build indeed, but may I ask what it's going to be used for? If it's for gaming, the X79 platform isn't the best. LGA1150/Z87 would actually be better. However, if it's for editing and such, the 6-cores of X79 are much better.