Is this PSU enough for this system?

[Kabobi]

I have a Seasonic S12 620W PSU, and was wondering whether it is adequate for the following system:

(parts is parentheses are to be purchased, the rest I already have)

(Core i7 930)
(Gigabyte GA-X58A-UD3R )
(6gb Corsair XMS DDR3 1600)
(ATI 5850)
Creative X-FI XtremeMusic
2x 750gb HDD 7200rpm (caviar black)
2x SATA Optical drives (SATA)
USB Keyboard + Mouse

Thank you the help.

 

[obsidian86]

http://www.antec.outervision.com/PSUEngine

should do the job

 

[MadAdmiral]

You should be fine.

 

[Kabobi]

Thank you both for the quick replies.

 

[Kabobi]

Best answer selected by Kabobi.