Did a search and came up empty on these two coolers.Thermalright HR-02 Macho Or NZXT Havik 140? Both coolers are within $7 of each other so price is not a factor.

I'll be mounting it to an ASrock Z68 Extreme4 Gen 3 and installing it in a Fractal Design R4. I plan a moderate OC on my i7-2600K and battling a very hot summer here.

Both have their pros and cons and 1 versus 2 fans. Would be great to hear from owners of either.