yes 700w would be plenty, something like this...http://www.newegg.com/Product/Product.aspx?Item=N82E16817182071
You can get it for $85 if you get it before 7/25. I love the Rosewill Capstone Series. I got the 550W version for $67 on a sale about a month ago, and i'm super happy with it. it's quiet, heavy, made by Superflower, it's a beast.