I use Turbosquid for free 3D models, and then customize them in Lightwave or Blender. I work on my own textures.
For audio I rely on Looperman for free music and sound fx.
For audio I rely on Looperman for free music and sound fx.
Are there any tutorials out there that explain your process a bit?
Best bet is to load up the project "Cocos3D Mashup". Then you can adjust things, try loading new models and taking programmatic control of the scene.