Ok, since you are going to use a i7-39**, then that will be no issue at all, as all of the motherboards are compatible.
ASrock X79
- 8 DDR3 channels, fairly affordable, 16/16/8 SLI/CF on PICe x16 3.0, 2 PCI slots. Good brand.
Patriot G2 16GB
- 16GB (4x4). Quality brand, heat spreader. Leaves you room to double or quadruple the amount of RAM should you need to. You can expand up to 64GB if need be.
HAF-x
-Case is always personal opinion. I happen to be partial to Coolermaster, and this one has a side window, and excellent cable management. Full Tower means you can put just about any computer component inside without worry.
Hyper 212+ EVO
- One of the best air coolers on the market, and has the LGA 2011 mount hardware.
Segate HDD
- Only $20 more than the 1TB of the same model, and plenty of room. If you need more, then just buy the same drive over and over. You could theoritically have 14 TB of space using these drives, assuming 1 DVD (or blueray) drive and 1 SSD.
XFX 1250 Watt
you said that you never want to have to worry if you have enough power. Challenge accepted by this PSU, quality brand, and enough power for 4 580's I think.
64 GB SSD
GTX 580
-Best you're going to find for the 422 left in the 1500 budget. You can go down to a 570 or 6970, but for the price you can not bat this one.