After my Antec just fried my board, RAM and minor damage to my vid card, I say ebay that sucker and get a good $65-100 PSU that is sure to get the job done. You can also get some decent $ for your DDR memory.
I'd go with a cheap Intel build right now. 939 technology is getting pretty old, doesn't seem worth it to pump more money into it for another 6-12 months. By that time you might not even be able to sell your spare parts as the technology will be getting really old. I say sell the working PSU and DDR memory while you can still get some $.
I just replaced my MB, CPU, RAM, and PSU for $260 after shipping and MIR.
$60 - Abit P35-E
$60 - Intel E2180
$65 - Corsair 550VX
$50 - 2x1GB G.Skill PC2 6400 (CAS4)
$235 Total - before shipping, after MIR
Should overclock to 3.2-3.5GHz without any trouble and keep you and me in buisness for another 1.5-2 years. Of course you'll need to add a video card to that build, but another $150-210 should get you a 9600GT or an 8800GT. You'll also need a CPU cooler, like the Tuniq Tower
for $45 or the AC Freezer 64 Pro
for $20 if you're on a tight budget.
And to Lins, that's a great deal on the 8800GT... how much of a factor is the "generic" brand? Should it perform the same and last just as long?