OCZ power supplies are crap don't get one. I had one randomly shut off on me once a month then it got to once a week. Buy that one Negative linked. Personally I would go no lower than a 600watt. I replaced it with a corsair similar to this one. Don't skimp on the PSU. $89.00 is a good price. Spend the extra 10 dollars to know you are getting a quality product.
Newegg.com - CORSAIR Enthusiast Series TX650 V2 650W ATX12V v2.31/ EPS12V v2.92 80 PLUS BRONZE Certified Active PFC High Performance Power Supply
