Nick Carter blogged about his DIY bench power supply with the ATX breakout board:
There are tons of such projects out there on the internet but most involve hacking open the power supply and I didn’t think that was the way to go. I considered getting a cheap ATX adapter from Monoprice and breaking out the voltages onto a PCB but then I came across the Dangerous Prototypes ATX Breakout Board.
It was only $13.80 plus $3.80 shipping from Hong Kong (via Seeed Studio) which was reasonable and quite a time saver. I happened to have an old used project enclosure laying around in my junk pile (I have no idea where I got it from) that would fit an ATX supply so I set to work.