I just bought a very similar setup ( still waiting on products to come in). From what I can see it looks good but FYI your links are bad. I don't know what happens but I know I linked some stuff a few days ago and it did the exact same thing what your did.
I only had 4gb of RAM because I have 8gb DDR2 in my system right now and I've never utilized even 60% or so lol but having to much is always a good thing compared to the latter.
The only thing I did different was I got a SSD for a boot/game drive. You can have the best components in the world but if your HDD is lacking it all bottlenecks there.