http://gskinner.com/talks/as3workshop/

Here's a great tutorial/presentation just found of theflashblog.com linking to Grant Skinner's slide deck: Introduction to AS3. There's about 165  slides all up with useful tips and code snippets making the information easy to follow. If your in the process of learning AS3 or making the conversion from AS2 like me, this is a very handy presentation to bookmark.