Bjorn3D posted a review on the Cooler Master Silent Pro Gold 1200W PSU
It is hard to come by a power supply that has perfect voltage regulation, high wattage, good efficiency, and a great design. Recently we reviewed a few power supplies, including the Thermaltake Toughpower Grand 1200W PSU and the Seasonic X-Series 660W 100% Modular Power Supply, both 80Plus Gold Certified. The Thermaltake Toughpower Grand 1200W PSU proved to be a great competitor in overall power output offered, but its voltage regulation was a big disappointment, and its 140mm fan was advertised as a quiet fan, but turned out to be quite noisy. Despite the horrific voltage regulation, Thermaltake decided to sell the power supply for well above $300 at the time of reviewing. The Seasonic X-Series 660W power supply, on the other hand, had a quite decent voltage regulation, and most of the time was completely silent due to its fan only turning on when higher wattage requirements are needed. Considering its price, though, we would have liked to see a higher wattage: somewhere in the 800-850W range.Cooler Master Silent Pro Gold 1200W Review