The store is SVC (www.svc.com) These deals are good this weekend only. The store is very reliable although I've never bought from them with rebates attached. You know how that goes. Anyway a bunch of power supplies on sale. Here are the 3 best:

Cooler Master RS-850-EMBA Real Power Pro 850W SLI ATX12V 2.2 Power Supply (http://www.svc.com/rs-850-emba.html)
Sale Price: $124.99
Price After Rebate: $64.99

Cooler Master RS-A00-EMBA Real Power Pro 1000W SLI ATX12V 2.2 Power Supply (http://www.svc.com/rs-a00-emba.html)
Sale Price: $199.99
Price After Rebate: $139.99

Cooler Master RP-600-PCAR Extreme Power 600W SLI Ready ATX12V 2.0 Power Supply (http://www.svc.com/rp-600-pcar.html)
Sale Price: $49.99
Price After Rebate: $9.99