In my opinion, not so good for a top end build.
Here are my thoughts:
1. With your budget, spend a bit more for a I7-6700K. You will have the option to overclock.
As of 5/2016
What percent can get an overclock at a somewhat sane 1.40v Vcore.
I7-6700K
4.9 2%
4.8 17%
4.7 59%
4.6 93%
4.5 100%
Even if you do not overclock, the 6700K at stock runs at 4.0 compared to 3.4 for 6700.
2. 14nm skylake runs cool. The 6700K even with an overclock needs little more than a $30 cryorig H7 cooler.
For the best, look for a Noctua NH-U12s or NH-U14s.
See my rant on liquid cooling at the end.
3. You are asking for trouble with the Samsung 961; it is not a retail supported device. Use a 950 PRO instead which is fully supported.
4. The psu is good, but even if you wanted GTX1080 sli(which I do not recommend) you would only need about 750-850w.
5. I like the use of a large ssd for active data. Yes, it is a bit more expensive per gb. You can always add a hard drive for backups or bulk storage later.
My canned rant on liquid cooling:
------------------------start of rant-------------------
You buy a liquid cooler to be able to extract an extra multiplier or two out of your OC.
How much do you really need?
I do not much like all in one liquid coolers when a good air cooler like a Noctua or phanteks can do the job just as well.
A liquid cooler will be expensive, noisy, less reliable, and will not cool any better
in a well ventilated case.
Liquid cooling is really air cooling, it just puts the heat exchange in a different place.
The orientation of the radiator will cause a problem.
If you orient it to take in cool air from the outside, you will cool the cpu better, but the hot air then circulates inside the case heating up the graphics card and motherboard.
If you orient it to exhaust(which I think is better) , then your cpu cooling will be less effective because it uses pre heated case air.
And... I have read too many tales of woe when a liquid cooler leaks.
google "H100 leak"
-----------------------end of rant--------------------------
Your pc will be quieter, more reliable, and will be cooled equally well with a decent air cooler.