Thanks for all the responses to my previous question.

On another but related topic, can anyone recommend a good software package for my 10 year old son to do stop motion animation with? He has already used Windows Movie Maker but is already frustrated with it. He has a Vistas PC.

I guess we're looking for a good package (free or to buy) that is relatively clear and inituiative but is also able to do more complex animations/effects etc as he get's older and more experinced.

Thanks