Will this PSU be good enough?

hi, i have purchased a 7900gs extreme and am needing a new PSU , will this one be ok :

http://www.ebuyer.com/product/131052/show_product_reviews

I have AMD 64 3700+ , 2 hard drives 149 gig each, one dvd rom/rw, 2 gig standard ram.

Advice appreciated

 

I'd get at least a 500w to be safe.
Having said that, I'm running an 8600GTS with Intel Core 2 Duo setup and my Hiper 480w seems to be fine.
It's from a reputable brand and seems as though you're paying for a good quality product so I'd go for it

Forgot to add, see if it's cheaper on scan.co.uk

 

The Corsair 450 would be fine :major IMO better choice than a Hiper 480
For a couple of bucks more you can buy the 520, free delivery too
http://www.ebuyer.com/product/114945

I own a Corsair 520, it's one fine PSU:celebrate

 

looks good to me, its even a single 12v rail (which is good)

 

cool, thanks for the advice everyone,
why is single rail better a good thing?