I think the best heatsink on the market just now is the ASUS STAR ICE
--> Here <--
I got 1 2 days ago , and its lowered my temps from 42 Idle to 31 Idle 64/66 Load to 46/48 Load
They have heatpipes and you can add an extra 80mm fan to them .
There a lot bigger than i thought , but there real quality .
You get a Front Fan controller for your floppy bay and a back bracket fan controller & Thermal controller.
Plus LED's on top of the blue jet engine design cover