Skylake PCB does bend:
http://hexus.net/tech/news/cpu/88628-intel-skylake-cpus-bending-due-cooler-mount-pressure/
For some extra dollars, get a x99 based system for yourself.
Also, the Samsung 850 is as average as its gets. If the lad want top performance get the Samsung 950 or intel 750.
I would go with the Intel in this case. Samsung has a reputation of shitty pre release testing.
If HDD space filled with precious memories, like in my case, ignore the large capacity drives, get few pairs of 1 or 2 TB drives, and RAID them.
On a cooling, most ppl are closed loop advocates, especially Corsair, around here, but Corsair does not makes liquid cooling, neither PSUs, its only rebranded products.
My PSU is Seasonic ( one of the OEM, thats makes Corsair PSUs ) and my cpu cooler is a Be Quiet Dark Rock Pro 3.
Superflower, Seasonic, FPS also fully recommended PSUs, just get their high end range.
On the RAM side, if you can afford Corsair Dominators, get them, if not, Then Kingston HyperX Fury series RAMs will do just good.
So, thats my recommendation. Best of luck with the build.