This isn't exactly a top of the line model, but if you need a PSU in a pinch without spending much - this is a great deal.
Thermaltake TR 600W PSU - $31.99 @ Best Buy
Disclaimer: I wouldn't recommend for high-end systems, or mission-critical stuff.
Thermaltake TR 600W PSU - $31.99 @ Best Buy
Disclaimer: I wouldn't recommend for high-end systems, or mission-critical stuff.