Boost-
If you read my questions to be answered by Ep2 & 3 you will see that other "Darths" doesn't belittle Vader. In the end, with their task of destroying the Jedi complete, Vader will destroy all of the Sith, thus becoming their DARK LORD (bringer of death). Also don't worry about too many red herrings, as of the end of Ep2 they are done. As I've posted earlier, I feel that Ep2 is the most dificult of the three scripts. It deals with MOST of the secrets in a way that will be exciting for new and old fans. I figure by the time we get to the Obiwan lightsaber fight, fans will figure that the dark figure is Anakin, and newbies will figure it's Obi's student. It gives both parties a nice twist and ups the ante for Ep3. I think we can handle mystery without being confusing to the audience.
If everyone WANTS space pirates, I think we should save them for when we start Ep7. =-o
A crumbling empire and a new republic stumbling to find its footing would be a great setting in which pirates could take advantage.