From FindLaw's Modern Practice: "The Dawn of Digital Litigation: Media Tools in the Courtroom," by Kelly Q. Ryan--
Whether you are in a firm with resources or you're a sole practitioner, still paying ten cents per copy, Litigation Media is within your grasp. If you decide to "self-produce" your litigation tools, the most common program would be PowerPoint. Utilizing the simple slideshow feature, distill your case down to its most powerful elements. Advanced users will know how to add wipes and fades, but even a slideshow with no special effects can have an immeasurable impact on information retention and persuasion.
Ryan goes on to explain what's new in "Litigation Media," including software packages such as TrialDirector Suite 4.5, DocumentDirector, Sanction II, and Trial Pro II. She also gives tips for deciding when you should hire a consultant.