I've decided to build a shelf/bookcase in my boy's room, and to use dovetail joints. While I have seen every episode of New Yankee Workshop, the actual extent of my woodworking experience has been in my garage with a circular saw cutting dimensional lumber and using butt joints. I do live on an Air Force base though and have access to a full woodshop, so the equipment isn't an issue. They even have a Porter Cable Omnijig that I plan on using to create the joints. Unfortunately, no one in the shop actually knows how to use it. Kind of a waste. I feel that using some scrap wood and using trial and error, I should be able to figure it out, but I'd rather have some idea of what I'm doing before hand. Does anyone have any particularly helpful step-by-step guides or videos on how to create dovetails and how to use the omnijig? Thanks in advance.