<<<I am scared, to be honest with you.>>>
Pretty much why I haven't done mine yet--and mine isn't even a video machine.
I didn't do the upgrade from earlier OSX to 10.3.x. One of the Systems people did it. I can ask him again and he'll do it, but I want to do this one myself.
The iBookis my only Mac. All the rest of the machines are PCs. This thing is my lifeline to iTunes.....
At work, the Systems people keep all the G5s and G4s up to date so all I have to do is get off the machines long enough for them to work.
Good luck.
Back up all your work.
Koz