Making a sing-along animation?

[shutterbug0303]

I know this sounds nuts...

but my mom has a project due for one of her Master's classes and wants to make a sing-along song with the words at the bottom and some sort of bouncing ball, or something running along the bottom.....

I've been racking my brain as to how to accomplish this, but nothing is really coming to me. I assume the easiest thing to do would be to have the words on the screen and just let them change colors instead of a ball...

I have photoshop and imageready, powerpoint, movie-making software, etc.

Any suggestions?