Grabbed from comment by SpeedEuphoria. Not as good as the 650W deal, but still nice.
You'll likely have to get Amazon to credit you, doubt you can submit 2 rebates.
Seasonic FOCUS Plus Series SSR-550FX 550W 80+ Gold ATX12V & EPS12V Full Modular 120mm FDB Fan Compact 140 mm Size Power Supply
$79.90 + Prime shipping - (2) $20 mail in MA Labs rebates
Price after rebates = $39.90 ends 11/10
10 Years Warranty
Compact size for ATX Power Supply
Seasonic Hybrid Silent Fan Control
120 mm Fluid Dynamic Bearing (FDB) Fans
Tight Voltage Regulation [± 3 %]
(1st post be nice)