http://pcpartpicker.com/p/7lUu If no CFing then you only need a 550+W PSU, 850W is overkill even for CF
If you want the MB just for the looks of it then you could get that instead, but Extreme4 should allow for a good OC. That keyboard/mouse are very expensive as well (personally I hate wireless, or rather batteries, especially for gaming). Do you need 256GB SSD? I would go with Crucial/Samsung/Intel over Corsair either way (they are considered more reliable). Monitors/Case/RAM could be changed back but I would get a 4*4GB set rather than 2 2*4GB sets of RAM for maximum compatibility (probably won't matter in the end, but just to be safe).
You could get a better MB/Cooling if you want to try and push the CPU to it's max OC for virtualization/encoding etc but for gaming you won't need any/a major OC