Alright...after doing some more talking to people, I got a recommendation as for a barebones cooling system:
BlackIce Xtreme Pro Radiator
PolarFLO Black/Copper waterblock
Rio 180 Pump (search for "180" on that page)
Those three components come to about $126 before shipping, by my calculations.
The guy said something about having to modify the Rio 180 so it would work as an inline pump?
Also, I figure I need a reservoir, or something, and some tubing?