powerbutton replacement

[ocdude]

I am building a digital picture frame out of an thinkpad a20 (can't remember the last digit...) logicboard. I have a question regarding the power button, though. I bought the mainboard separate from an actual thinkpad body, thus I have none of the bezel, keyboard and whatnot. Does anyone know where I can get a replacement powerbutton or where to wire a self built one onto the mainboard?