power supplies which on from my list

which one?for a 6 core cpu 1 hdd 6gsata ati hd 4850 4 gig mem?
Corsair VX550W PSU

OCZ OCZ550FTY-UK Fatal1ty Series / 550W
OCZ OCZ600SXS-UK / StealthXStream
OCZ ModXStream Pro 600W - 80+ & SLI Certified - ATX12V 2.2/ EPS12V
OCZ 500W Mod XStream Pro PSU
OCZ Stealth Xtream 500W PSU

I'd go for the Corsair :)

Depends on the price, but assuming they are all the same price, I would go for the modxstream pro 600W.

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Originally Posted by SiM

Depends on the price, but assuming they are all the same price, I would go for the modxstream pro 600W.

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all around the same price.

I would go for the Corsair or if you want modular cables the OCZ 500W Mod XStream Pro PSU

I'm waiting for the new X series Seasonic PSUs to come out, which were announced at Computex. 560w is the sweet spot.