James Rolfe, better known as The Angry Video Game Nerd is a big movie buff and has done a retrospective review of the Star Wars films. I like James have seen them a lot throughout my life, but he mentions a few things in the first part of his review that I never realised before. I always knew that Star Wars followed a very classic Hero/Villain story, but I never knew how much of a melting pot of classic archetypes it was. So worth a watch.
In relation to James' comment on the optimum order to watch the films in, I think it has been well established now that watching them in the order they where filmed, results in a better first viewing.