Here the 520watt version of the powerstream
http://www.newegg.com/Product/Product.asp?Item=N82E16817104152
The 600 watt version might be a little over kill unless you dont mind the cost.
http://www.newegg.com/Product/Product.asp?Item=N82E16817104152
The 600 watt version might be a little over kill unless you dont mind the cost.