Silverstone Strider 850W modular PSU
 

the PSU is more than adequate for a high end system and future high end systems with support for ATX 2.2 and EPS 12V, also the PSU comes with dual PCI-Express 8 pin connectors, something we will be shortly seeing appearing on cards, don’t worry though there is also 4x normal 6 pin connectors for those seeking quad sli, or just wanting to run 2x8800 GTX cards

http://www.xtremecomputing.co.uk/review.php?id=332