Nice setup, I have something similar. Somehow puting an ac current motor (EMF) and a heater core (leaks, hot air) in a pc does not seem like a good idea to me.

Is that pump a velocity T4? The T3 would probably give you more flow since that loop looks real restrictive. I was considering getting one of those, but figured that it was overkill for less than 5 boxes. Maybe when I get more machines.
I like those quick release fittings. I need some of those.