This Corsair is great for that price http://www.newegg.com/Product/Product.aspx?Item=N82E16817139008
and will run your system just fine.
I just wanted to let you know that (after a little wait time due to a ship addr problem I had), I just got my 400W Corsair power supply yesterday and installed it, and my pc is working WORLDS better now.
I like the quality of the Corsair, from the pkging on up. I ordered it from newegg, total price $56.xx, before a $20 rebate!
Thanks again for that recommendation.