In any case, I want Active PFC, right? I have an Athlon XP cpu-- do I need two fans? If one's OK, these two look like nice choices at excellent prices:
COOLMAX CP-500T EPS12V 500W Power Supply - Retail
HIPRO TOP-600P5 ATX V2.01 600W Power Supply - OEM
Any thoughts? If I do need two fans, then that changes everything.