Freeware animation proggy?

[ThunderChicken]

I'm gonna make an avatar for me, but it's gonna be animated if I can, but if not, it'll be a chicken with a paper bag on it's head ;)

EDIT: (Slow down Chicken!!)

I mean, is there any freeware animation programs out there?

[ThunderChicken]

Let's see some animation in this!!