Pro Cooling is like Benchtest.com, but with a forum and a bunch of weirdos arguing in a forum about what mill bits are the best
Oh...and a staff.
Myself, I have had my mind set on a waterblock for months(years?)...and its been the Danger Den Maze series...its the only one within my price range, and its avaible in the states(unlike its next competition, the Cyclone).
My other components will be based on price and past experience from others in a real world application(read: more than 6 months of use).