Ellen Finkelstein, Inc. just released her new book AutoCAD 2007 and AutoCAD LT 2007 Bible. Written for both novice and experienced users, this book covers the new 3D enhancements, how to customize 2007, tips on drawing and editing in 2D with layers and dimensions and more.
It also ships with a CD which contains a 30-day trial version of AutoCAD 2007 and lots of extra freeware and shareware written in both lisp and VBA. In addition to free routines you get before-and-after real-world drawings examples (to go with examples in book) and a searchable PDF file of the entire AutoCAD LT 2007 Bible.