Machinima

Never heard of Machinima before? It's a very handy tool in doing previsualization for shoots or even using it to create a full animated production.

Good Examples:
http://www.machinima.com/films.php?id=1154
http://youtube.com/watch?v=IzO1mCAVyMw
http://secondlife.com/community/media.php

General info about it:
http://www.machinima.com/article.php?article=433
http://en.wikipedia.org/wiki/Machinima