Just a quick heads-up about the mib_amb_occlusion texture. Render the
texture from the Maya 2011 Terminal on the Mac and you will get an
unexpected result...In this example, I've connected the output of the mib_amb_occlusion texture to the Color attribute of a Maya Surface Shader (AO is disabled in the Render Settings).
This is because the value of the texture's Spread attribute is not getting correctly exported. By default the attribute is set to 0.8, but rendering from the Maya 2011 Terminal sets the value to 0.0.