The biggest factor that brought down my CPU temp was using the Koolance Exos watercooling system. Before H20, my CPU load would top out around 60 C. Even with my room AC on, the CPU would reach 55 C at load.
Now, with the Exos + AC in my room, I get idle of 29C and load of 33 C. Without AC, load is 35 C.
I say save up $240 and buy the Koolance. Although it was my first time playing with watercooling, the entire setup process took less than 30 minutes and I can reach awesome overclocks.