back to zarbon7, are you looking for a "mechanical-key" accessible setup to control access because you can't trust ppl with passwords, but aren't worried about dos floppy having, bios chip toting, jumper shorting, hard drive imaging criminals that don't know key locks well? if so, a key-switch would be simple & cost effective. it kind of makes you wish ATX kept the AT keylock eh?
Mindhacker, *EMERGENCY* you forgot to check for RF transmitters in your keyboard!!!
LOL skylined, prototypes aren't very presentable are they? GJ on your circuit.