:| Definitely stay away from brands like SunBeam, DiabloTek, and Logisys when it comes to PSU's. They're bound to break. I would stick with a better known brand that sells cheaper PSU's. OCZ, for example.
OCZ Fatal1ty 550W Modular
It's about as cheap as the ones you're looking to get, after Rebate, promo code, and shipping.
It has the new standard 20+4 ATX and 4+4 EPS 12V. Check to make sure it can handle the card you wish to use and that it has enough connections and power for the rest of the rig.