for the pc fan u simply nid to buy a ac to dc convertor fan i think is 24vdc
the convertor is sumthing like a transformer step down house voltage to 24vdc
most electrical shop got sell ard $10,sum less than $10
no nid buy till beri gd one
i knw aquamarine got sell
other LFS not so sure abt it...
and the fans use 2 big gd ones(c on fan power consumption and flowrate) can liaoz (wait richer then go for chiller if u intend to)
if u using MH ermz... best buy chiller if can afford MH....
as for e pipe i not using durso cus tht time making i wan e cheapest mahz
actuali can duplicate methods similiar to durso i ever c b4 pple posting in e DIY forum hav to go search urself
i put one egg crate with 1 carbon filter wool on top
sound b minimise abt half