You can search for free storyboard templates online, when you decide on that, you then have to know what aspect ratio you want it in. (4:3, or 16:9)
When making a storyboard, you draw basic poses of the characters in chronological order of a scene or sequence. You don't go into too much detail on the characters their, just enough for the next process, layout. In layout, you draw more detailed, and larger, key poses, and expressions for the animator to work from. From there the animator draws inbetweens to make the character move.
Basicaly, that's how it's done.
Or you can draw a character and move parts around in flash, but this process is very boring, and produces poor results.
Here's a great free blog that can tell you everything you could want to know about handdrawn animation
http://www.johnkcurriculum.blogspot.com
Also, watch the episode of Tiny Toon Adventures entitled 'Animaniacs' to see how it's done visualy. Hope this helped