May I ask why you are choosing i7-3960X over i7-3930K (I'm assuming they are both available at times of purchase)? Performance wise, the only difference is that the $1,000 6-core has more L3 cache memory than the $600 6-core, but whether the difference shows itself
depends on application. They both have unlocked multipliers up to 57x and adjustable strap ratios beyond stock 100MHx bus clock, though practically on an H100 you're not going to overclock much farther than 5GHz (FPO Batch dependent, since not all processors are alike).
Faster and more expensive models exist mainly for the majority that don't overclock, so if they want the best i7 available, 3960X is it. But if you're not going to overclock, you don't need H100 unless you just want lower than average temperatures.
Also, unless you're planning another two 680's someday or upgrade to a future pair of dual-GPU cards, you don't need a 1500W power supply, unless a high quality 1200W unit isn't available. CPU and GPU draw the most power in your system and only from 12v. Your 6-core runs about
11A (While 980X and 3960X are different architectures, both are 32nm 6-cores at close to the same frequency, so they'll have about the same power draw) and each GTX680 is just over 16A (
scroll to bottom), so that's 43A total not including fans and drives-- still, that is between 650-850W unit depending on your overclock. You don't need much to start.
I realize this is your dream and I'm not being critical, it is just that my bias of determining diminishing returns is bleeding through. There is a fine line between future-proof (getting more than you need for a future use) and overkill (never needing the extra). My X58/i7-920 was an attempt at future-proof but I ended up overkilling, but that doesn't mean I won't upgrade to another expensive setup someday because I can.

What you get is up to you.
JuleKo
Delirious
Actually, I've seen the larger drives with better speeds.
So logic fails me..
the SSD must acces itself with the same speed, no matter where the files a placed on the disk.
Many times larger capacity SSD's have higher performance for marketing appeal, i.e. companies adjust the speeds. It has nothing to do with what the technology can do. Why should they allow full-bore on a low-premium product? Even Intel varies the ability between their processors and platforms; architecturally, there is no difference between LGA1155 and LGA2011 except for specs.