Fight Death by Powerpoint with Pecha Kucha. I found out about this on an Artful Manager blog post. Also found a good site - Garr Reynolds - with tips for doing effective presentations.
What Is Pecha Kucha Night?
Each presenter is allowed 20 images, each shown for 20 seconds each - giving 6 minutes 40 seconds of fame before the next presenter is up. This keeps presentations concise, the interest level up, and gives more people the chance to show.