Axle: The two separate pump loops is an overkill. If you have a good solid pump then you should be able to use a single pump that will provide flow to both loops. Both loops meaning one loop that goes to the CPU block only and another parrallel loop that goes to the GPU block and NB block.
Heh if you are intersted, I have a Becooling NB block that is barely used that would work perfect for you and I would be willing to sell it to your for $15 shipped.
I have to disagree with the Ehiem being loud. I currently own and use a Ehiem 1250 and it is dead quiet. As long as you proper insulate the pump from the case in some shape or form, I can hardly hear it. It is expensive but I feel that it was worth the investment.
Need any more advise
