WOW! That is the cleanest looking pc I've seen in a while! I would offer constructive criticism but you've got it all down!
Really, doing cable management in this case, is really nice! It's really hard to screw up, because of the PSU and HDD covers hiding everything + the huge amount of space in the back too. I might post this tomorrow at Reddit on pcmasterrace. I would like to do a /r/battlestation post as well soon