FYI, the Noctua U12P and a Noctua NC-U6 chipset cooler do not fit when used together (as pictured above), the NC-U6 Northbridge (NB) heatsink hits the U12P. So I had to order the Thermalright HR-05 SLI/IFX, the one with an angle. I've also ordered (thanks to 3oh6 suggesting this) an 80x15mm fan to fit on the HR-05. When more copper heatsinks and the HR-05 arrives, I'll be able to say I'm finished this upgrade, all the copper on the board looks neat against the black PCB.
@aln688: how do you intend to position the HR-05? I am having a dilemma on the temps of the NB. TIA.