I thought this was an excellent piece from "Rands in Repose" about how to plan a presentation. I discovered that I actually already follow a few of the tips, but many of them were brilliant and new to me. I especially like the idea of practicing your presentation immediately after roughing out the slides. Why? As the author says:
"Build confidence. You now know the absolute worst case scenario regarding this presentation. There is no way it could be worse than what you just went through."