I bought an Antec Phantom 500. It's way too big for the case, so I've built a bracket to hold it higher so that it can hover over the motherboard. I'm quite impressed with the fit that I've managed.

I'm going to have it flush with the heatsink on the left side, and I plan on covering that side with arctic silver thermal compound. Since the fan of the PSU only turns on at 55 degrees celsius, I really need to try to keep the temp down for quiet operation. I've even mounted the CPU heatsink that I won't be using on the CPU on the Phantom, in the hopes that I can drop the temperature by another 5 degrees.
I'm just waiting to get some 90 degree SATA cables and the heatpipes for the bridge and I'll be able to continue.
The anticipation is killing me. :blink: