To me, this seems like overkill. If money is no object, then this is a great build. If budget is an issue, there's a lot that can be done to reduce price and maintain almost the exact same level of performance.
You don't need a liquid CPU cooler unless you're doing some serious overclocking. And with your current case, you'd be fine even sticking with stock fans. The motherboard you've selected has some really cool features, but is not necessary. you could get something for as low as $60 or $70, and it would function just as well, but without all the flashy features. I'm not sure why you have a 1000W Platinum power supply. You could get by with as little as 700W, and maybe even a little under that, and gold is plenty efficient. To me, Windows 8 Pro is not worth the extra ~$40.
Again, if you have money flowing out of your pockets, then by all means, go ahead. But if you need to cut options, those that I listed could get the build down to around $1500.