Nice deal. And a hell of a deal if you're looking for a heatsink. You can grab the
Thermaltake Water 2.0 Extreme for $44 with that code and MIR. For that price, you could easily afford to add some awesome quiet fans like the Noctua NF-F12, BeQuiet Silent Wings 2, Noiseblockers, or even Scythe Gentle Typhoons.