Will 650w PSU be sufficient for this build?

Will this PSU be enough to support this build including future crossfire of 5770 GPU?

PSU:
Antec EarthWatts EA650 650W Continuous Power ATX12V Ver.2.2 / EPS12V version 2.91 SLI Certified CrossFire Ready 80 PLUS Certified ... http://www.newegg.com/Product/Product.aspx?Item=N82E168...


Case:
NZXT GAMMA Classic Series GAMA-001BK Black Steel ATX Mid Tower Computer Case
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
HDD:
SAMSUNG Spinpoint F4 HD322GJ/U 320GB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
MOBO
ASUS M4A79XTD EVO AM3 AMD 790X ATX AMD Motherboard
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
GPU:
HIS H577FK1GD Radeon HD 5770 (Juniper XT) 1GB 128-bit GDDR5 PCI Express 2.0 x16 HDCP Ready CrossFireX Support Video Card
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
CD:
SONY Black SATA DVD-ROM Drive Model DDU1681S-0B – OEM
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
RAM:
G.SKILL 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10600) Dual Channel Kit Desktop Memory Model F3-10600CL9D-4GBNT
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
CPU:
AMD Phenom II X4 955 Black Edition Deneb 3.2GHz Socket AM3 125W Quad-Core Processor HDZ955FBGMBOX
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Thank you,

Joe