Hey there and welcome to the forum! :) One question about the cow model, is it modelled to be in a game engine and if so, are you thinking about making it animation-friendly?
That is a really cool game... the "animation" is actually pretty nice and can not be judged by looking at the screen shots only. Oh and it runs fine with WINE on Linux
http://www.11secondclub.com/forum/ Forum full of animators, you will probably get more guidance there. Other then that i'd agree with everything blender said.
@kodde, that's cool! Seams to be very useful for animation but a bit of a hassle for this.. The paint geometry tool looks really cool! I think that might be the solution!