Lessons learned:
1) Always test the PSU first. If the PSU is bad, it can blow up other, new components.
2) Let the professionals test the PSU. Testing with a multimeter is insufficient, as I proved.
Phil, thanks for your help. You had the right answer right off the bat, with the PSU being the root cause.
Edited by HitmanInWis, 31 July 2012 - 01:03 AM.