Newegg.com has the SeaSonic X Series X650 Gold ((SS-650KM Active PFC F3)) 650W ATX12V V2.3/EPS 12V V2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Modular Active PFC Power Supply for a good price.

Item has a rating of 5/5 from 225 reviews

eBay Price : $138.70 Shipped

1. Newegg Price : $139.99 Shipped
2. Use coupon code EMCYTZT638 to get $30 off
Final Price : $109.99 Shipped