BFG Tech GS-550 PSU Specs
GS-550 Power Supply
Specifications
>   ATX12V 2.2
>   Dual 12V Rails
>   SATA Connectors
>   PCI Express Ready
>   Efficiency: > 80% Typical
>   Silent 140mm Intake Fan
>   BFG Thermal Control Technology
>   Protection Circuitry
>   MTBF: 80,000 Hours at 25° C
>   Safety Approval: CCC, CB, UL, TUV, CE, CSA, CUL, NEMKO, SAA, GS, VDE
>   Dimensions: 8.6cm W x 15cm H x 15.8cm D (3.4" W x 6" H x 6.25" D)
>   1 Year Warranty
DC Output
>   +3.3V = 35A
>   +5V = 40A
>   +3.3V +5V Max. Combined Wattage = 130W
>   +12V1 = 18A
>   +12V2 = 18A
>   +12V Max. Combined Wattage = 432W
>   -12V = 0.5A
>   +5VSB = 2.5A
Included In Box
>   1 x 550 Watt Power Supply Unit
>   1 x US Power Cable
>   1 x User's Guide
>   4 x Mounting Screws
Connectors
>   1 x 24-Pin (20+4-Pin) Motherboard Connector
>   1 x 8-Pin (4+4-Pin) CPU 12V Power Connector
>   1 x 6-Pin PCI Express Connector
>   1 x 8-Pin (6+2-Pin) PCI Express Connector
>   4 x 4-Pin Molex Connectors
>   1 x 4-Pin Floppy Connector
>   4 x SATA Connectors
Works With The Following Motherboards
>   PCI Express
>   AGP
>   PCI
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Upon further review, it appears that BFG no longer offers a lifetime warranty on their PSU's anymore.  Which makes me believe they have a cheaper manufacturer building their units now.  Their warranty is only 1 year.
The PC Power and Cooling one baldeagl posted has nicer specs and a 5 year warranty.