Written shortly after the release of Episode 3, Rod Hilton created what has become one of the best parodies of Revenge of the Sith as yet. And, the guys over at GeeksOn (a podcast that is "created by geeks, for geeks, covering topics that geeks like to talk about. Movies, Sci-fi, Video Games, Comics, TV, Internet, Board Games, RPGs") put together an audio version.  Keep in mind the cursing, so this is one that isn't for the kiddies.

Find the audio at GeeksOn.com