~$666 + PSU, also running on Windows 7 Ultimate x64, "20 monitor.
...However, what I'm now sceptical on is the power supply. I was recommended [this] originally, and then also Seasonic S12II 620. Corsair TX650 / XFX Core 650. I want to keep the price moderate, but have no clue what to look for. I'm not even sure how many watts this build will want.
So what power supply should I look for, and are there any changes I should make to this build? Also would it be able to smoothly run Skyrim on ultra high settings?