I see in the review section here they have tested the silver rad, What about the black one. At Overclock-Watercool site they rave about the black one being the best rad. for water cooling.
They look smal but check ou this comparision. http://www.overclockers.com/articles304/
That little silver one hung with the DangerDen cube. And DD cube is like 5 x the size. I was impressed. I need something small like 5x5x1 for a radiator. Any other suggestions?