I have a door making bit set I bought at Rockler. I had a smaller router at the time when I bought the set, so I bought a vertical bit. It's a little cheaper and you can get away with a smaller router. The downside- they require you run the panels through vertically as well, so it takes a little more technique and a good/tall fence. I've got a bigger, dedicated table router now, when this bit wears out I'll move up to a 'real' panel bit. I ended up making 24 doors for the basement, including the two 4 panel doors on the entertainment center. I'm done with doors for while. Got my media center set up just in time for football season.
