OCC has published a new review on the Antec Signature 850W PSU

I would highly recommend the Antec Signature 850W to anyone considering high end graphics cards in SLI or Crossfire but perhaps it's a little expensive and over powered for the majority of users. If price is not an issue and you are looking for a high quality power supply, almost silent up to approximately 500 - 600W, then the Antec Signature 850W will I'm sure, prove to be a wise investment. Despite the failure to meet the claimed 80 Plus Bronze efficiency levels, the efficiency is still very good and I have no hesitation in giving the Antec Signature 850W an OCC Gold Award.

Antec Signature 850W Review