Thats a very nice overclock Kryton. I got my 3500+ to ~3150, but it got too hot and wont budge over 2850 now .
Temps for the most part were never an issue with the A8N32sli. The board did very well, although I think mine had some vcore stability issues. No matter what I did I could never get it stable unlike my DFI's which are rock solid.
The chipset heatpipe works VERY well, never had any problems there either. I put a tornado fan (90cfm 80mm) on my stock opteron cooler once and it moved so much air that my board actually was several degrees cooler than the cpu. And I don't think it ever went above 35*C @ fully loaded.
After I got my Corsairs any sort of stability issues went away. (except for vcore fluctuation).
I stopped using it mainly because of the voltage issues. I was able to achieve a higher 24/7 OC with the DFI's. Not to mention there were so many more BIOS options it wasn't funny.
In regards to the A8N32, most people haven't messed with the PCIe overclock setting. It does actually work, 5MHz per card is what I've found works best. While it doesn't give much it gave about 2fps in Crysis, considering I started @ 15 FPS thats a pretty good improvement.
I do kind of miss that board, but I'm going to be using crossfire so it would've been useless anyway.
N2 if its these cards, then thats a pretty damn good deal.
The blue coating on the back of the board they all came with works and my MB temps were good too. Asus did some real engineering getting it to work and the heatpipes themselves work great.