Tell you what. Don't make the simple fix of putting a new power supply in that rig. You just send that piece of junk to me, and I'll make sure it doesn't clutter up your house anymore.

Seriously though. It should be an easy fix. I recently did it to my 1.7Ghz. Not all of us are lucky enough to be on the 3.4Ghz razor's edge all of the time.
Actually I've found this to be a good excuse for buying arcade parts. I told my wife, "...But honey, I've found something that I can do with obsolete computers. This will cut down the urge to buy new hardware and it's cheaper than a new computer system."