Default Mecanim Rig

Hi,

I'm looking a free human character model that comes set up with mecanim for its animations. The character needs to be able to walk and turn its head to look at a target while walking.

I'm mocking up a small demo project and need a quick and dirty proof of concept before we dive into full development. If I can't find one I'm going to add the look at state to the default third person AI from the standard assets, but if anyone knows of a free asset that does what I'm looking for I'd appreciate it.