If you have the money, get a watercooling system.
This is how it works, You have to secure a radiator to a little tank filled with liquid(even though it is called water cooling, most companies use an electric friendly substance) the cold liquid is pumped from the little tank to the radiator which the liquid is then chilled, then it goes to the heat sink on the CPU and displaces heat with cold, the warm water comes back to the radiator to be cooled again.. Most water cooling systems can be used within your computer, but some also have external parts to do this. The coolest thing you can get is a VapoChill, it keeps the cpu at like -80c. very expensive $800