I love finding websites that first of all offer something that is free and secondly something that is really interesting. I can say hand on heart that I am useless at anything like 3D model creation, however if any feels brave enough to have a go for themselves, here is the perfect opportunity.
Blender is the open source software for 3D modeling, animation, rendering, post-production, interactive creation and playback. Available for all major operating systems under the GNU General Public License.