Included with Auto CAD 2009 are a series of cue cards to learn new product features. These can also work great for a lunch and learn session in an office to help others on your team learn new features and the productivity benefits and tips and tricks. My cue cards are located at:
C:\Program Files\AutoCAD 2009\Help\newfeatures\acad_cue_cards.pdf
There is also a New Icon Quick Reference in the same directory named acad_new_icons.pdf.