IMHO, the only really decent EU books are Zahn's, even though I think he may have gone to the Thrawn well one too many times. :-) Oh, and that three-book series that attempted to flesh out a backstory for Han Solo; those were a fun read. Those are the only ones I've bothered to keep; the other EU books I've gotten over the years (not many of them) ended up in a "stuff I don't need any more and can get rid of" box.