Newegg offers the Thermaltake Toughpower Grand 850-Watt ATX Power Supply
, model no. PS-TPG-0850MPCGUS-1, for $109.99. This $30 mail-in rebate
drops it to $79.99
. With free shipping
, that's the lowest total price we could find by $46. This 80 PLUS Gold-certified power supply features 87% to 92% efficiency, 140mm fan, and SLI and CrossFire support. Deal ends November 30.