First system you linked, get faster memory, and get a 2x 8GB kit. 1866 CL 9 or 10 should make a difference. And it should be cheaper than the memory you selected. I saw a kit there from Mushkin a couple nights ago that would be a good choice. And I do not yet like the stability of Windows 10, not to even mention all of the data collection they have given themselves the right to do on you in their license. Get Windows 7 or 8.1 now, take the free upgrade if you decide to make the jump before July 29, 2016.
Second system, EVGA B power supplies are not good... Take your choice of one of these top of the line power supplies:
EVGA 110-B2-0750-VR 750W 80+ Bronze Certified Semi-Modular ATX Power Supply $75.99 - $30 mail in rebate = $44.99
SeaSonic S12II 620W 80+ Bronze Certified Non-Modular ATX Power Supply $68.99
Same issue with the memory here as the first system. 1866 CL 9 or 10 trumps 1333 memory.
I guess I am surprised you did not put together a new Skylake system. Between the upgrades in the CPU and the Z170 chipset, its going to rock the Intel world for years.
Just for a point of reference, here is a pcpartpicker system I put together a couple of nights ago for someone. The Mushin memory I talked about above is in this system: http://pcpartpicker.com/p/FK2RP6