For my brother's overdone monitor (AKA iMac G5 shell), I'm re-using the PSU. It's a weird 22-pin connector, but it's almost the same physical shape of a 20/24-pin ATX connector. The electrical's a little different: http://www.xlr8yourmac.com/images/im...ply_pinout.gif. I just need a female connector so I can make it a little easier to interface into it. 20 or 24 doesn't matter, as the extra 2 pins, as you can see, are 24V, and
GND.
While I have your interest, I'm looking for a quick 2-wire system to disconnect a power switch.