CompUSA has the Antec SP-350 SmartPower 350 Watt ATX12V v2.0 PSU Power Supply for only $19.99 after rebate.

Pricegrabber Price : $50.55 ~ $83.98 Shipped

1. CompUSA Price : $49.99
2. Choose to pickup in-stores to save on shipping.
3. Rebate Price : -$30.00
Final Price : $19.99 After Rebate