Once in a while I would think about this project and looked up ways to create an adapter from AT to XT. It's cheaper and it takes up less space then getting a $$$ XT clicky keyboard on eBay. More recently I had found some decently priced ones on eBay but never pulled the trigger.
Then after our trip to the Portland Mini Maker Faire and staying/talking to my best friend, it sparked my motivation to finish this project. We had visited a computer recycling place in search of a keyboard. They thought they had one, but not all 5pin din keyboards from yesteryear are XT. So looking on eBay can be tough as well. The best bet are ones that obviously have a switch.