The Hexus crew have taken a couple of 500W PSUs from Akasa & Fortron & pit them against each other to see which delivers the most solid power source.

"Up for test are a pair of PSUs; one from Akasa, and one from FSP. Both of these supplies cost around £60, and both are rated at 500W, which should be enough juice for most users unless they are running a high-end dual-GPU system."