[pHaestus]

I would actually suggest that you stick with the BI Pro and mount it outside the back of the case with the Swiftech rad box instead of going to the ProCore. You'll get some improvement with a 90CFM fan and the Procore vs the BI Pro, but I don't personally think it'll overcome the improvement from using cool air. What case are you using?

I've never personally handled a CSP750M2, but keep in mind that the comments you get on the internet are going to mostly be from people with problems. I know lots of people used Rios and the cheapo pumps that Becooling sold and were happy even though my opinion was that they were shoddy.

It sounds like you aren't too concerned about noise if you have a 90 CFM fan. So why cool the nb with water? It'll lower performance of the other wbs, yield minimal to no performance boost, and there's no way you'll be able to hear a stock fan over the 120mm you're using. For AMD64 the mem controller isnt even on NB so I can't imagine it being too big a deal to air cool...