Some recent video reviews of D20 books:
The Complete Monstrous Wizard's Compendium
http://www.youtube.com/watch?v=cEFzXOJ9XGw
Uresia: Grave of Heaven
http://www.youtube.com/watch?v=gZO0ExHDQ4Y
Free Prestige Class PDF
http://www.youtube.com/watch?v=g83ub42EJyE
Codex of Erde
http://www.youtube.com/watch?v=qQqwFDz0HI4
Savage Species
http://www.youtube.com/watch?v=g9CaOla9fMw