Erikstormtrooper your post made me think of something. What about if Aunt Beru was a Skywalker and Owen was Anakins brother-in-law? The OT never says they were brothers, just that Owen is Luke's uncle.

I also love the idea of getting off Tatooine. We spend way to much time on a planet that is described as the fartherst planet from the bright center of the universe (4 out of 6 movies). Anakin and Obiwan could meet up with the Lars' at any point in the trilogy(maybe even to lay low). As Erik said Owen could move to Tatooine to avoid the conflict (i LOVE that irony). It gives some believabilty to the idea of Obiwan taking Luke there. He will be raised by family but removed from the civilized part of the galaxy. The PT seemed silly to HIDE Luke on his father's home planet.