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+1 to all above. That Lepa G1600 is an Enermax 1500w MaxRevo, I have one in my system, great PSU.

The 690's are two downclocked 680's. SLi and Crossfire only support 4 way (4x1) or quad (2x2). You can fold more than 4 GPUs but then the gaming benefits kind of go down the drain with the amount of money you are spending. Also the main thing with getting a 3930k is to get the C2 version which should be the only version in the shop nowadays anyways but if you are getting second hand or off ebay, make sure you ask So list of components I recommend: i7 3930k Asrock X79 Extreme11 OCZ Vertex 4 with newest firmware or Plextor M3 pro (M3P) My only worry is that the H100 won't fit inside your case. Does it have a 2x120mm area for it? As for RAM, 4 dimms is a must to make use of the quad-channel that X79 allows. I would aim for anything that is 1866Mhz @CL9 for best price to performance. As for PSU, I've got a treat for you Behold the Lepa G1600 80plus Gold 1600W power supply, the most powerful PSU in production that is available for the common man Here's a good review: Lepa G1600-MA 1600W Review

With any luck, Ivy Bridge-E, which won't be out until next year may have 48 lanes which is 16x3 but no CPU has 64 lanes. If you have unlimited money, the Dual Xeon motherboards will support 80 lanes but there will not be any overclockability and is not worth it. Honestly, if you really want 64 lanes, just wait for the Asrock X79 Extreme11. It is amazing. It even has on board Creative Sound Core3D.

Actually, the 3930k does have PCIe 3.0 capability. It has 40 lanes meaning it can be spread over five slots running @x8 each or 16/16/8 or 16/8/8/8 (whatever adds up to 40). Ivy Bridge has only 16 lanes meaning it is only capable of two slots @x8 or one @x16. The Asrock I mentioned as two bridge chips on its X79 board which allow a total of 64 lanes meaning that it can run four GPUs @x16 speeds each. Some premium Z77 boards such as the Asrock Z77 extreme9 and EVGA Z77 FTW all have one PLX bridge and can offer 4 GPUs @8x each totaling 32 lanes, twice what the CPU is capable of. Basically, for a vanilla setup, Ivy Bridge will allow one or two cards, with a better mobo, it will allow up to four. On X79, you have enough bandwidth for four to play with from the start without the need for a enthusiast mobo. Just as a small bit of education in case you didn't quite understand what all this talk of PCIe is, it is bandwidth. PCIe 3.0 x16 is the fastest, x8 is the same as PCIe 2.0 @x16 and so on etc. There is hardly any performance difference really.