Bio Motion Lab is a scientific lab doing studies on... biological motion! They made an interesting study on how people walk, the difference between female and male: they put luminescent white dots or pills (?) on joints of people from both sexes, had them walk on a treadmill and filmed them, thousands of them and then calculated an average. They then transfered the whole thing in a format that you can control and published it on the web. The independently controlable parameters are: male/female, heavy/light, nervous/relaxed and happy or sad.
Definitely worth a try, here's the link:
http://www.biomotionlab.ca/Demos/BMLwalker.html Have fun, Rose.
PS: turn the lines on, it's much easier to see.