now what?

So now that I've finished my home movie making (i dare not go into the realm of plot and script with my younger siblings), it's time to take it to school. I've wanted to make a school movie ever since I saw l'Tovah's one, nad now that I know a little bit about movie making, I would like to give it a shot. But there are a few problems with this.
a) I don't have a camera.
b) I can't get myself to buy a camera because I don't actually have a specific plot or idea of what to make the movie about (though I have the perfect music!) and because I want to replace my newly confiscated mp3 player.
Also, if I spent my time on making a movie, it would distract me from doing the types of things that would get me viruses on the computers, and we would get our internet back. But that would also mean it would distract me from my schoolwork.
It's really annoying to want two things equally and being forced to buy one. But I really shouldn't complain, seeing as one of my friends lost his wallet and broke his mp3 player practically on the same day.
Well, I guess I'll let you know what happens.