"1000w KingWing" - also be a little concerned about any PSU that makes me think of parts of a chicken. and/or hungry .
The best Power Supply that I have found is the XFX ProSeries 1050W
http://www.newegg.com/Product/Product.aspx?Item=N82E16817207021Currently running 3x 7950s and have overhead for 1 more atleast.
$190 and its fully modular, I'm very impressed by this power supply.
I'm using XFX Power supply and XFX video cards. 5 year warranty on the power supply and lifetime on the cards. I don't know how the other brands compete.