the pump I have is cheap so the noise is about as intrusive as the dragon orb I had on there before but if one splurged and bought a better pump Im sure the noise would be almost unnoticable. waterblocks are too much work spend some cash on a waterblock they perform better and are guaranteed to fit. The koolance 100 and 200 seem to be pretty good buys.
tubing 5
radiator 30
pump 30
tank 20
this is what I had to shell out, everything else I had lying around, 3/8th adapters, zip ties, fan, plumber goop(this makes it possible)and an old fin cooler for waterblock, took me about a week to build in my spare time.
