Almost any good quality 400W+ PSU will be fine if you don't plan on upgrading your card or processor in the near future.
Here is a PSU calculator you can use to get an idea of what you actually need as per wattage: http://www.thermaltake.outervision.com/
Very nice choice. A bit more than you need for your current specs listed, but good for upgrading in the future. And it's modular. You can end up with a cleaner, cooler finished build by leaving out the cables you don't use.