Powerpoint for Fun and Profit
We commonly use Powerpoint in our firm for mediation, oral argument, and trial presentations. I've written it before here, and I'll write it again now: a Powerpoint presentation is much less effective if it is just a bulletpoint version of your speech. I always try to think of what background graphic would be used by a newsmagazine like Dateline NBC, 20/20, or (God and Judge willing) the Daily Show. It's not going to be a simple three line bulletpoint list (by the way, social science says no more than 3-5 lines on a slide if you are going to make a bullet list). Instead, it's going to be something that adds to the speaker's own message.
This article from the LA Times goes over Mark Lanier's much applauded use of Powerpoint in the first Vioxx wrongful death case. (Although Vioxx is a bit off topic for here, you can read much about the Vioxx cases at John Day's Day on Torts blog.) (Thanks to the Legal Reader for the link.)