I'm a back yard carpenter but want to get into doing some finish work & making some furniture. (easy stuff). I've had some ideas where I could have used a router but don't know much about them. Is there a web site that can fill me in on the beginnings of what I need & how to use? For instance, shank size? Do I need a router that handles 1/4 inch or 1/2 inch shanks or one that uses both? Would appreciate some direction.