It's up and running. The build went fairly smoothly; the only casualty was the retention clip on the PCIe slot, which I broke trying to remove the massive video card in order to get to the SATA ports. Even without it, the card seems to be seated securely, so I'm not worried. I got Win7 installed with no problems, and the machine boots to desktop lightning fast. I'm going to fiddle with voltages and whatnot tonight, then I'll get some benchmark scores.