I think I could pull off being a timer, actually. I was quite good at that back in audio/video class. And I though I have, like, 3 acting roles, let's face it, I still don't get that many lines, and I want to be able to help out more.
I'll need to run a couple of tests through GarageBand, first, to make sure it's possible for me to do it on this computer, but I'm 99% sure that I can do it.
EDIT: After doing a quick test, it seems like I can import mp3s into GarageBand with no trouble. And iTunes can convert most audio files into mp3... Still, it would be easier for me if everything was an mp3 to start with. ^^;