Yeah, that's why I wondered if their keys were compatible with other keyboards. I'd convert my whole fleet of PC keyboards, whether they're hooked up to Amigas or not
The keycaps will fit most keyboards that use a cherry mx switch. they will NOT fit most likely any keyboard you have not specifically purchased with cherry mx switches, as in everything from logitech, microsoft, or any non-brand.
Cherry MX switched boards:
steelstorm, filco, leopold, WASD, Das, Ducky, and Rosewill makes one.