This is part one of two of a presentation I gave internally called "How To Present Just About Anything" - it's the first time I've tried recording myself during a presentation. (Tech Note: While recording on Keynote works very well, the resulting file is huge.)
The presentation is basically a compilation of everything I've learned from having to do dozens of live presentations every year. The flow is pretty straightforward: The Basics -> Tips & Tricks -> What To Do When Disaster Strikes.
First video is 25 minutes, the second is 15, so be forewarned.