Do I go with the Core i7 3930k with a maximus 4 extreme or Intel Core i7 3770k with a maximus 5 extreme with these parts. This is for high quality gaming and lightning fast video editing. I will be adding TONS of Ram and 2 More GTX 670s.
GPU - EVGA GTX 670 4GB Superclock
RAM - Corsair DOMINATOR Platinum 16 GB (2 x 8 GB)
HDD - Seagate Barracuda 3 TB (Retail Drive)
SSD - OCZ Vertex 4 128GB
OS - Windows 7 Professional SP1 64bit (Full) System Builder DVD 1 Pack
The maximus is socket 1155 and the 3930k is socket 2011, the 3930k also has over twice the transister count of the 3770k which is a good indication of general preformance.
Get the 3930K as long as you can still afford all the other parts without having to compromise. I think you mean Rampage IV Extreme when you're talking about the motherboard. I would suggest getting a quad channel RAM kit along with it too. I would get something like this:
If i did more video editing/rendering/processing, then I would have gone w/ 3930k, but i dont do enough to justify me spending that much. So I got the 3770k. Its still a really great processor.
Your PSU is a bit overkill though. Unless you plan on doing some SLI down the road or something power demanding. Then again, it never hurts to have some headroom.