I have been meaning to get a DC power supply for my work bench. In the passed I have used computer power supplies in a pinch. I figured with a little tweaking it would make a pretty good general DC power supply. I attached a switch i had lying around to pins 15 and 16 (pin-outs) and then attached pins 1, 2, 4, 6, 10, 11, 17 and 18 to a dual row terminal strip. The terminal strip I had has 8 positions so I figured I would do 2 of each voltage, 3.3V, 5V, 12V and GND. I didn’t bother with the -12V
So far it is working well. Especially since it cost me $0.
The folks at Dangerous Prototypes have a really nice kit you can get at seedstudio.com. Even though I just through this together I will still probably get one. They put in some resetable fuses which is nice. You also wont need to chop up the cables. And at $14 you cant go wrong.