X-Treme Modz has posted a look at the Polar Flo water blocks.  Check out the performance they get as compared to a couple of air coolers, the Aerocool and the Gladiator 3.

“A year or so ago who would have thought that an unknown (to the PC world) machine shop in
Montana would be such a force in the PC water cooling market. Up until the last year if you
asked someone about water cooling hardware there were only a couple of names that came to mind,
boy has that changed…”