http://www.dgcad.com/ by DG CAD Consulting has posted a series of free video tutorials on AutoCAD, ADT, and Revit. What they have done is used the New Features Workshop which is in AutoCAD 2005 and then added their own commentary to further explain the concepts of new features. You can also order the video tutorials on CD. I have added this web site to this blogs left side menu of Helpful Resources. Sometimes the most absorbed and memorable training comes from seeing and following along.
An example is the 7 part series of lessons for AutoCAD 2005 New Features
Lesson 1: Sheet Set Overview
Lesson 2: Sheet Set Wizard
Lesson 3: Sheet Sets - Resource Files and Views
Lesson 4: View Ports, Callout Bubbles, and View Adjustments
Lesson 5: Sheet Sets - Select Selections, Archive, eTransmit, and Publish
Lesson 6: Sheet Sets - Lists and General Summary
Lesson 7: Tool Palettes
Thanks to Mark Browning for giving me the heads up on this great resource. If anyone else has a tip, trick, or site to mention please let me know at email@example.com.