One of the many things that's saddened me with the prequel trilogy is how it has completely ignored one of the great contributions of the EU, namely Timothy Zahn's take on cloning. Zahn put forth the idea that the clones were unstable and had a tendency to go insane, hence the clone wars. The reason for this was feedback in the force. Like if you put a microphone in front of the speaker it's connected to, or aim a video camera at the screen to which it is outputting, the force "signature" of every being is unique, but with a clone, they're identical, and it creates a pressure on the clones mind that drives him or her insane. The way around it was a prolonged maturing process, allowing the clones to aclimate to that pressure naturally, or Thrawn's solution, surrounding the sparti cylinders with Ysallimiri to block out the force until the clones were fully matured and stable. Personally, I loved this idea, and I think it's a terrible waste that Lucas ignored it entirely, and seems to have overlooked the question of what a clones presence does to the force entirely.
As far as the EU goes, I'm not a huge fan. I've read the majority of the books, and save for the Zahn books, I've been unimpressed with all of them (I'm only speaking of the original SW book run, not the New Jedi Order or later). The books became episodic and star treky. At the end of the adventure, everyone was pretty much back to normal, ready for next weeks thrilling instalment. It hasn't been until they took this new direction with the New Jedi Order series that things have actually started to happen. I'm not a big fan of the Vong really, but at least it's something different, and the stuff that happens matters. The characters are growing and changing, and that's a good thing.
Anyway, anyone else miss the Zahn clone connection?