Hi Skip and welcome. I made an edge guide recently and it was simple, cheap, and easy to do. It's at post #47 in this link http://www.routerforums.com/tools-wo...-corner-5.html
Derek Willis came up with this idea for a circle guide. You'll need a set of guide bushings to do it but they are good to have anyway. Check post #2. http://www.routerforums.com/general-...-trimming.html
Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.