The SilverStone Decathlon DA700 is definitely one of the better power supplies I have tested. It is super quiet and runs very cool. Even under heavy load there was only a whisper from the internal fan, and the exhaust air never felt more than luke-warm coming from the rear vents. Having one big fat +12v rail rather than several small ones might really help out here, as the measured voltages during idle and load conditions had very little fluctuation at all and not much deviance between them.
The included ATX cable did have two pins that appeared a bit mangled, and would not work when plugged into the motherboard. Once I swapped out the cable however, all was fine, and I'm sure SilverStone would replace any such cable under warranty. Hopefully this is an isolated incident and would not be a frequent occurrence. This is the sort of thing that should be caught under quality control inspection. Other than the faulty cable, the only other complaint I have is the same I have with nearly every other power supply manufacturer's modular cables, and that is with the mesh wrap on the bundled wires it makes the cables a bit stiff and hard to work with.
But really I'm picking at straws here, the SilverStone Decathlon series is truly an awesome power supply and worthy of praise. Sure, just as with any other high-end power supply you're going to pay for the quality. I found the DA700 online for right around $175, and while you can find another 700W or greater power supply for much less, you'd be hard pressed to find one with a single +12v rail and as stable outputs as this. The SilverStone Decathlon DA700 earns the OCIA.net Seal of Approval.