If there's one thing I enjoy about video projects, it's the development stage.
That's where the creativity lies and you're free to explore your options as it takes shape. I have always enjoyed sketching out storyboards to make the script come "alive".
Much like a comic strip, it lays out the action as the story goes on.
Here is an example of a storyboard I sketched out to explain how to animate in Flash for a group project when I was taking Digital Multimedia in school.