He took the ball that lucas gave him and not only ran with it, but built a stadium around it. Read it.
Close seconds are Thrawn Trilogy and follow-up Pair. Also the new Han Solo trilogy by AC Crispin.
Plus the short stories "A Barve Like That" and "Last One Standing". Two Fett stories from the days when he was seriously cool.
*** have none of you read I, Jedi ? If you're looking for a solid read that will make you actually think then Traitor of the New Jedi Order Series is definately a must read
Darth Bane: Path of Destruction Is by Far my favorite book, then comes the "The Bounty Hunter Wars" series