Heat dissipation will be done by a good heatsink, good fans only moves more air... that is good with every heatsink tho!
Better HSF than volcano 7+... look at Thermalright, they are heavy but they are about the best you can get with air cooling.. except maybe heatpipes technology.
BTW why do you want to cool your CPU more?
SYX -=AMD Powered=-
AMD 1800+ @ 1880Mhz on A7S333 , 250 Meg DDR 333 Platinum @2-2-2-6
Asus TNT 2 32 meg (128) , 250W ATX, 200W AT (same case)
Steel automotive intake fan (see avatar) , 3X40mm exaust fans in the back