You might not be able to tell users what they "can" buy, but I will.
Hey Folks! If you're looking to buy excellent source materials to generate studio quality 3D animation, you 'can' and 'should' check out:
http://www.blender3d.org/e-shop/product_info_n.php?products_id=120
4 DVDs (count 'em!) of high quality animation, commentary, tutorials, and all sources, released under Creative Commons License!
-- kf (I'm not affiliated with this project in any form)