Welcome cobolman. I too began cycling not that long ago with an old bike I picked up at a consignment shop for $56. It was a fine old bike but did not fit me. I was lucky to stop in a bike shop that put me on the right bike. Before rushing out to find your right bike, spend some time here reading the many posts about the many kinds of cycling people do with the many kinds of bikes available. Eventually, you will gravitate to some activity and have a good idea of the kind of bike the is best suited for it.