I just thought I should thank you guys for your excellent help.
I recently purchased a Thermalright HR-05 SLI and regular, both the IFX models, and Swiftech MC21
's for the Mosfets.
Though mounting was a challenge, I had the SLI for the south bridge with an 80mm fan on it, and the north bridge had the regular model operating passively, with a Tuniq tower sideways drawing air over it.
My temps were (taken from an onboard sensor via everest with an ambient temperature of ~20 C)
TIM used for all tests: Arctic Silver 5.
e6400 3.0 ghz, 1.26 volts.
System: 35 degree's
There is also a 40mm fan blowing on my north bridge for the original test.
Now with the stuff installed:
Idle: ~36 degree's
Load ~44 degree's
System: 26 degree's
Note, some of the change could be since I changed the orientation of my Tuniq tower, however I don't imagine that the effect was more than a degree or two.
Also, because of the 80mm fan, my GPU temperature dropped about 5 degree's C.