How Much Do I Need

[quagmondo23]

I am getting a power supply but I don't know how much power I need. I will be getting an 8800gt 512 card soon. And do demanding enough things. I was thinking this looked good. I like the idea of being able to plug everything into the power supply. Is that a good feature or is it cheap. My budget is around £110.
Maybe this

 

[PabloTeK]

If you need to run an 8800GT then get this: http://www.scan.co.uk/Products/ProductInfo.asp?WebProductID=446788 Although if you want to run 2 I'd get the 620w version to be safe.