Adobe InDesign CS5, Learn By Video seems to be an excellent resource to bring yourself up to speed in InDesign. Presented by Russell Viers & Jose Ramos, it contains over 18 hours of videos, along with a nifty companion guide. It’ll teach you how to use essential tools and find your way around. Topics include adding text and graphics, working with color and transparency, creating master pages, using the Layers panel, exporting to EPUB and more.
Check it out here: http://www.adobepress.com/bookstore/product.asp?isbn=0321734807