Nathan, I would just like to extend my deepest gratitude for the obvious research you did to answer my silly question. You have saved my head from exploding, and that is appreciated.
As for my hatred of the EU in general, I have a few examples of this:
-Sun Crusher/Darksaber/Superweapon of the Week
-Kevin J. Anderson, overall
-The Invincible Yuuzhan Vong
-Rogue Planet and The Approaching Storm
-The Glove of Vader
-Did I mention Kevin J. Anderson?
There is some stuff I've read that I really enjoyed (Labyrinth of Evil, most of the "Republic" comic series, Zahn's trilogy), but for the most part, EU stuff either bores me out of my mind or makes me want to throw the book/comic/whatever across the room in disgust.
Anyway, this isn't an EU thread, so I'll stop rambling. One thing I am curious about other people's feelings on that has to do with both the EU and the films is whether or not people were confused with the Sifo-Dyas thing never being explained. One of people's main arguments with "The Blair Witch Project" (if they could sit through it) was the fact that you had to read a book and the website to get the background information, and they felt that they shouldn't have to do so in order to get the full film experience. I'm of the opinion that films should stand alone and not rely on books to get the whole story, but that such supporting materials are interesting to read after you've seen the film and add more depth to them.
Sifo-Dyas, while being explained in LOE, was never brought up or explained in either AOTC or ROTS past Obi-Wan's report to Mace and Yoda. I went to see ROTS (number 12) with a cousin last Saturday who is a fan of the films (but not a huge fan) and she was asking me all kinds of questions afterwards, and one of those was "What about the Sifo-Dyas guy?"
So, I guess another focus of this thread could be, when does an EU explanation/backstory *need* to be included in the films in order to make sense to the casual viewer? In the case of the Quarren, I don't think it's important, but when you mention it in one film, make a huge deal out of it, and then don't even explain it in that film or the next, it's kind of iffy.