I have the Becooling setup - Black Ice Extreme, Maxijet 220(?) and Black Edge block. My CPU runs, at best guess, 41-45 degrees. (Note - try not to keep radiator directly beneath a heat register, if possible.) I've never kept it at load long enough to find out max temperatures, but 10 minutes of Sandra increase temperatures by less than 2 degrees.
I'd personally like the Koolance EXOS system if I cared nothing for the self-built aspect of PC cooling, but despite both that and the high price, I don't think it's been on the market long enough to say whether all those self-contained parts are a hassle to maintain if they crap out.
It's good that you're spending some time worrying about the fans. A quiet, high-flow fan will make the difference between a mediocre cooling setup and a good one. Arguably, that's true for any system, but that's where I've run into most of my problems.
Just have fun, don't worry too much, do your research (as apparently you are), and be prepared to fork over quite a bit of change.
Alchemy
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