Originally I was planned to build a Bitfenix Prodigy machine, but discovered the EVGA Hadron case just days before I went to build the machine. Seeing the 2 cases side by side at Microcenter just sealed my decision. Yes, I can't liquid cool my processor but that's overkill for my needs. I'm a graphic designer/developer with a 3d printer hobby. I'm not editing video, etc.
Motherboard: Went with the Gigabyte because it was on sale at Microcenter. Plus it should make it easier if I later want to play with hackintosh.
Wiring: Power cable was zip tied to the hard drive cage. Also ran the 4 pin power UNDER the motherboard. Also hid the grey front panel audio wire by running it below the PCI slot. The only thing I really want to change is the blue USB3 connector. At some point i'll hunt down a black extension cable and run it under the mother board.
Cooling: I went with the EVGA cooler as they had it at Microcenter. Only issue is that it blocks the PCI slot when installed on the Gigabyte. So rotated the cooler and flipped the fan to PULL instead of the default PUSH. One word of advice if you have this same setup, install the cooler to the board without the fan attached. My hands were too big and it was killing me to reach the pins to snap the cooler into place.
As to the Noctua case fans, I picked them up thinking they had higher airflow than the stock ones. Nope. I was wrong. But hey, they run quiet.
Future Plans: I'll replace the existing HD with a SSD next month. Also once the dust clears with all the new Steam box stuff i plan to setup my machine to dual boot to SteamOS.