Sgtgto-

You were right... the Antec Neo 430W PSU that came with the case wasn't enough. I was getting a lot of random crashes and lockups.

I put a Seasonic M12 600W PSU in earlier tonight. Not only has that thing been rock stable, but I was also able to tweak out an extra 150Mhz overclock out of that thing.

Since I had the case open, I also lapped the heatsink (polished it with 3 grits of sandpaper, and metal polish, to give it a mirror finish), reapplied Arctic Silver 5, and rotated the CPU cooler fan so that it pulls air from the case, instead of pulling air below the PSU.

Final system specs are in my updated sig.