Forgot to add about the harddrives (I seem to be very forgetful today heh!)
I wish I could watercool them, but the way they are mounted in this case its very difficult to get a block in there. There's no way to mount blocks on the sides, only top or bottom (and even then the gap is only 10-15mm thick).
BTW your rig is amazing

I especially like the harddrive cooling. What is the RGB PCI card ?