I usually favor ASUS mo-bos because of their fan controlling. It's described here:http://techreport.com/discussions.x/21815
Just jump to the part that deals with fan controlling. basically ASUS has a Windows application in which you can control both PWM fan and regular 3pin fans easily via a graph with temperature on the x-axis and percentage (of max rpm) on the y-axis. You then have three "spots" which will create your own "temp/rpm"-profile. PWM and 3-pin fans are controlled separately. PWM can go as low as 10-20 % while 3 pin fans go down to 40 % (5 V).
It's very easy and intuitive. Usually the "Pro"-versions has more fan headers.
I've considered this setup for video cards. Buy a 6850, then install one of those passively cooled heatsinks from Arctic Cooling, and then strap on a fan of your choice. Usually cooler and quieter than anything on the market, but it's more expensive. You could also consider ASUS DirectCU cards. Those are usually quiet too.
16 GB also seems a bit overkill. Even 8 GB seems quite overkill, but it's so cheap that I'd definitely recommend 2x4 GB.
About the rest of your system. It seems good.
Basically, SSD's from Crucial M4, Intel and Samsung are reliable. The M4 needs a firmware upgrade though.
Every thing else seems very well thought out.