Replacement Box Wiring

This is probably a dumb question but does anyone know wher I can buy a replacement switch and the appropriate wiring leads for my old PC Box. I really like the box design and want to keep it, but all the leads comming off the swich and the LED's are bundled into a single plastic block that fits with my current motherboard. Problem is I'm replacing the motherboard and the pin configuration on the new board is different. Any suggestions would be helpful. I'm hoping not to have to buy a used box and canabalize it.

No, it was definately an ATX box. I did finally get it to work. I bought an old used AT box for $5 and stripped all the wires out of it. All I ultimately needed was the little plastic plug heads on the ends of the wires. I took the wires out of the old block and reseated them in the plug housings that came with the AT box. Worked like a charm. I went to two RadioShacks and another local electronics store before I gave up on finding those damn housings and just bought the old AT. Such is life.