For my final render, I decided to use PP 2010 advanced IDL feature to cast a global illumination to the scene.  The envsphere casts it's own light because the image is plugged into the PoserSurface ambient channel and that channel's value is set to 1.  I, also, needed to change the lighting to the scene to support IDL.  The IBL was changed to a specular infinite light because IDL only outputs diffuse lighting, totally ignoring specularity.  The render setting screencap above, shows where to activate IDL.