so its probably between soldering or one 2 way and two 4 way splitters or some other combination.
I've only hooked up 3 AP-29's using this method but it works fine, not sure how the 3 pin adapters would hold up to 60W of power though.
Yep soldering would work and would be tidier (though obviously more work).
These look quite interesting, though I've never used one with a fan controller: http://www.frozencpu.com/products/14666/ele-992/3-Pin_P...
Ah ok then, I wouldn't have thought that would be an issue then, nice choice of fans BTW.
I've had Laing DDC 18W pumps before and they can be loud because of the vibrations they cause, I'd recommend a shoggy sandwich to help with the noise.
I don't really see a problem with putting the pumps on the controller providing that you don't turn the voltage down too much. I know some fan controllers have an option to supply the full 12V for a few seconds on start up, I'd recommend taking advantage of that feature if your controller has it.