Thermaltake Schooner @ techpowerup.com
 

Thermaltake has been creative - the Schooner is the first VGA cooler which uses a heatpipe to transport heat to the outside of the case where it is dissipated. The Thermaltake Schooner is the best completely passive cooler we tested so far.

http://www.techpowerup.com/reviews/Thermaltake/Schooner