Newegg.com has an Antec SP-500 SmartPower 500 Watt ATX12V v2.0 PSU Power Supply for $39.99 after $30 rebate with Free Shipping.
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- Dual 12V output circuitry provides added system stability and meets 240VA UL requirements and safety purpose: 12V1 for Motherboard and peripherals; 12V2 for processor n
- ATX12V v2.0 compliance allows SmartPower 2.0 to consume up to 25% less power than standard power supplies, saving you money on your electric bill. 24-pin power connector with detachable 4-pin section for backwards compatibility with ATX 20-pin motherboards. n
- 4 SATA Connectors support Serial ATA optical drives