Tuniq Tower 120 CPU Cooler
 

The fan sits neatly in the middle of the heatsink, so the air is being sucked through one set of fins and heatpipes, and blown out the other set. A very effective way of getting the most out of the 120mm fan. Not only that, but the fan is hidden out of the way of fingers, and the aesthetics are much better without a huge fan sitting on top.

Link: http://www.xtremecomputing.co.uk/review.php?id=189

this thing is friggin HUGE