So, I kept the atx case, I seem to keep them forever. I bought a new motherboard Asus M5A87 with am3+, and an amd 6x, with some new ddr3 memory, and a new disk drive.
I've never had it so easy! No mb shorts, no memory incompatibility. It all zoomed right up! I'm installing Debian right now. I wonder what 6 processors can do. I'm really hoping it can take care of my google+ hangout problems.