I've got mayhems pastel white coolant, works fine, no sedement like crap within the piping, bit overpriced, but worth it for my colour theme, all comes pre-biocided too. The OCUK Raystorm 240kit is good value for money. I used it as a baseline and added to it. Pump/Res combo units are a great idea for cases with too many 5.25" bays like mine. I'm going to replace most of my radiator fans with the 2.64 static pressure Bitfenix Spectres, so it goes with my case theme more. Current fans are just over 3.0 static pressure, though I have no issues with heat dissipation, so I'll +1 the bitfenix fans, they'll work just fine, just not as well as the higher SP fans out there like the stock H100 ones (I'm currently using).