while watching Click on the BBC i saw this program that is completely free to make animations. http://news.bbc.co.uk/1/hi/programmes/click_online/default.stm
( if you want to watch the episode for yourself.)
Any way i have downloaded the program called blender and i thought other people might be intrested in this program. Here is the website. http://www.blender.org/ .
Now just to see how it works...

Yaar, im using it too

I use MonkeyJam which is very good, It also is good for looking at what you have done, its quick and free.

Blender is for CGI stuff, not claymation.

Nice just looked at it, thanks harry

I'm using Maya for FB. It's awesome. Blender sounds cool though.