Newegg.com has the Mushkin Enhanced MKNPSJL1000 1000W ATX12V v2.3 80 PLUS GOLD Certified Active PFC Power Supply for a good price.

Item has a rating of 5/5 from 2 reviews

Google Products Price : $176.48 ~ $183.69 Shipped

1. Newegg Price : $139.99 Shipped
2. Rebate Price : -$10.00 ( Exp : 9/25/11 )
Final Price : $129.99 Shipped After Rebate