Pretty much just lurk on your thread, but one thing that I keep in mind when I have to give presentations (mercifully rarely) -- they're there to listen to YOU because you know something that they need to know. You're the xpert.
If that doesn't work, picture them in their undies (but only the cute ones).
BD
My latest
Me: 36 W: 35 2 D: 9 and 5 T: 16 years M: 12 10/4/06: Bomb 10/5/06: Ended A 4/22/07: ILYBNILWY