Very nice rig AND pics man!
Also, that avatar rocks
I say get the UD3, you won't be disappointed. It's one of the best boards for the am3+ platform and the best in its price range definitely. A friend has it and he's really happy with it.
Another 7850 after upgrading the ram to either avexir core series or Crucial Ballistix Tactical Tracers should be awesome.
No need for a loop, I say get a Thermalright Silver Arrow SB-E Extreme or the new Megahalems or a Phanteks beast. That would cool the same as the H80 but quieter, if not get a Swiftech H220 and replace the fans with others that would fit your color scheme better. Corsair SP 120 fans are solid and relatively cheap. (get the silent version though)
The crucials have great chips for the AMD platform and have switchable led lights, Avexir does too I think but not 100% sure.