Render a 3D Model with a Basic Effect
http://msdn.microsoft.com/en-us/library/bb203933(v=xnagamestudio.40).aspx

Render a 3D Skinned Character Model using the XNA Framework Content Pipeline
http://create.msdn.com/ko-KR/education/catalog/sample/skinned_model

Lecture Note for 3D Skinned Character Model
http://mmedia.glos.ac.uk/igd220/T3/SkinnedCharacter.html