How many watt's power supply does this build need?

[loveCZ]

Please help me to check, I was told that 550W is enough but Asus's supporting page told me that 600W is the minimum requirement. Please kindly verify.

MSI X58 Pro SLI X58 M/B
Intel Core i7 920 (2.66GHz) CPU/8M BOX
Corsair TR3X6G1333C9 DDR3 1333 6G Kit (2Gx3) 3-Channel Pack
Sapphire HD4890 PCI-E 1GB DDR5
Pioneer DVR-A17FXD1 20X DVD Writer
WD 640GB 6401AALS SATA II/32MB HDD

Oh right, is my preferred configuration fine? Any necessary adjustment? Someone told me to buy G skill's 6GB pack which is 1333Ghz with CL8. Does that one CL really matter if I do not do overclock?

Thanks a lot folks

 

[nutsnut]

I would say a min of 500watt, but make sure its a reputable brand like Corsairs 520watt model.

For future upgrades and possibility of added a 2nd card at a later date I would go for a min 600 watt.

 

[Lemons_Mufc]

i would go for a 600 to be safe

 

[Audigex]

500 should be fine, 600 for the sake of a tenner won't do any harm.