Question on power supply

I'm looking to buy a bigger power supply and I'm wondering what kind I need to get? This is waht I have btw http://www.newegg.com/Product/Product.aspx?Item=N82E16883107400Question on power supply
What a new one to sup;y the same system or one to support upgrades because that vid card is shocking. Just get an ATX 500w. If you bought it for that price you got completey ripped off.Question on power supply
I'm buying a 8600 GT and no I didn't buy it for that price lol

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