Figured I would update this thread a little.
I am more and more impressed with this H50. Perfectly matched to my Q6600 IMO.
It got really cold tonight, so I opened the window and let the room get cold (its 50*f in here).
My Q6600@3.4ghz is idling at 15*C accross the board, and only going up to 54*C during intel burn test (extreme, 5 loops).
Played 2hrs of dirt 2 and maxed out at 41*C. I am very happy with this cooler + 2 Yate Loon medium speed's. I cant wait to add some shrouds to it to see if the temps budge at all.
Wow, 15c, must be cold in your room.