Re: The Amish
The Amish rules about use of technology are based on their local church (which is usually about 20-40 families), and not the movement as a whole. So you can have one church that allows things like bicycles and power tools, and the next church that could be just 1-2 miles down the road that doesn't allow those same things.
I remember an article from some years back where a visitor staying with an Amish family remarked on the families ownership of a toaster, to which the household patriarch said "We are of this world, and we like toast."
There is a terrific documentary about the Amish available through the U.S. Public Broadcast Service if you are interested. It is named "The Amish", and it does a very good job of humanizing a group that is often looked at as rather otherworldly.