Derek Ddufon is upgrading his Easy Revit 2009 "Walk through of an entire project step by step" Series of Video Tutorials to 2010 there were 35 videos in the 2009 series so I'm sure there are more to come......
ddufon's YouTube Channel
Easy Revit (2010) - 2 - Grid Lines
Easy Revit (2010) - 3 - Dimensions
Easy Revit (2010) - 4 - Draw Walls
Easy Revit (2010) - 5 - Create and Modify Wall Types
This list will be updated as Derek uploads more videos....