Wouldn't greatly disagree greatly, with anything. I take it the two lots of memory listed, is a misprint. For GPU, it's worth considering the HD 7850. At least equal, in most games, a good bit better in others. Lower power consumption/heat. Of course, depends on price, where you are. I take it you are gaming on 1920x1080 monitor.
Right, 1920x1080. I already have the HD 6950, and I'd rather not get a new card at this point.
The memory is correct. I have 8GB of that memory. I just listed 2x the 4GB kits because that's what I actually have, and it made searching by part number easier. Did you assume it was a misprint because it's listed twice, or because it's DDR3-1333? Is it worth upgrading to 1600?
Just wondered if the same thing twice was a mistake. I'm not too sure what you are asking. Have you already purchased all these components. DDR3-1600 would have been better (although there aren't any brilliant options on mobo memory list), and 2x4GB, but if you've already bits, it's not worth changing them. Everything will work, and reasonably well.