Will this power supply handle it?

[maxstill]

I am aiming to build a system that uses crossfire.
As such I already have this setup
AMD Phenom X4 955 Black Edition
AMD Radeon 280x Direct CU II Top in crossfire with AMD Radeon 7950
1 piece of trash Sata HDD that I have never bothered changing
12 gb of Kingston DDR3 Ram
Will a PSU of 650W manage this configuration http://www.highpower-tech.com/ID/product_page.php?class=20100527154213&id=20121210173717#product

 

[Dark Lord of Tech]

I would go with 850w EVGA B2 or G2.