Hi Steve, there's a site that sells steel rule dies for quilters:
http://www.accuquilt.com/studio-shop.html
They also sell a machine that will accept the dies (roller type), and make custom dies. The only difference I know of is that the accuquilt dies are fully foam covered. Most clicker/printer dies either have those small foam rectangles around the blade or no foam support at all. I've used 'used' steel rule printer dies in my roller type device.