eTeknix checked out the Seasonic XP2 Platinum 660W Fully-Modular Power Supply
A quote from the article:
Seasonic is one of the most established names in the power supply industry, not only do they make many of their own very high quality products, they?re also an industry leader for manufacturing high-end PSUs which are used and sold by a whole host of other brands; there's a good chance you own a Seasonic PSU and don't even know it. Seasonic products have proven to be award winners many times before, not only from us here at eTeknix, but in reviews all around the world. The unit we have today is a mid-range 660W unit, so I?m not expecting earth-shattering performance, but it does have a few features that are worth getting excited about.Seasonic XP2 Platinum 660W Fully-Modular Power Supply Review @ eTeknix
The SS-660XP Active PFC F3 PSU comes with an 80 Plus Platinum efficiency, which should make it very cost-effective to run in your system. It also comes with a powerful +12V single rail design, an active/hybrid fan design and fully modular cables.