I get my shiny new audible.com credits today, and I read so voraciously that I'm out of ideas as to what to buy. After seeing what folks have come up with for this month's challenge, I figured this would be a great place to throw out a plea for suggestions. So, what are everyone's favorite sci-fi/fantasy books and/or series?

Some of the stuff I've been reading recently (some for the 2nd-20th time):
David Weber's entire catalog
Pern (9th pass books) by Anne McCaffrey
Miles Vorkosigan Saga by Lois McMaster Bujold
Codex Alera by Jim Butcher
Imager series by LEModesitt Jr
Wheel of Time
Midkemia-based book by Raymond E Feist
Farseer Trilogy by Robin Hobb
Elantris/Mistborn Trilogy by Brandon Sanderson
Boneshaker by Cherie Priest