ANTEC PP403X 400W ATX Power Supply www.CompUSA.com national flyer has a misprint. It's a $10.00 rebate, not $20.00 Their newer model has twin fans (like Enermax) so I guess they're unloading the stock. Comparing the price @ http://www.newegg.com/app/manufactory.asp?catalog=58&DEPA=1 (which handles both ANTEC & ENERMAX) ANTEC (newer model) PP412X $73.00 + $7.00 shipping ENERMAX EG465P-VE (FM). 431W $81.00 + $6.00 shipping So if you consider shipping, your saving about $10 @ the store, & you'll wait about 3 months for the $10 rebate. But Dual Fan PSU's are in vogue right now. PCPower&Cooling units cost twice as much!
The Antec PP403x is on the AMD Approved Power Supply list. http://www.amd.com/us-en/Processors/ProductInformation/0,,30_118_756_759^1039,00.html
goto the web site, national ads, price is the same. Price is from their "Sunday Newspaper Supplement"