will this power supply be enough for my 8800GT, and will it fit in my system. heres my power supply that i wanna buy http://www.newegg.com/Product/Product.aspx?Item=N82E16817182016

heres my sytem http://www.dell.com/content/products/productdetails.aspx/inspndt_530?c=us&l=en&s=dhs&cs=19

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does that mean i have to pay a fee every month?

k so im buying the 8800GT OC with that power supply

thanks to all of you hw help me make this desition