The quick and easy away suggested by someone over in the setup forum is to export your animated expressions and motions as a BVH file. Don't know if that will work with or without autorigging but I'm thinking someone tried it before. Over in the DAZ Carrara forum, someone suggested exporting your DAZ/Poser models as a LWO (Lightwave file) or using another program to convert an OBJ and MTL file into an LWO and you can easily bring the mesh and textures in without having to individually import and assign the textures.

There are tutes (I think that are paid ones by Joe Cosman) that show how to rig a face.

Kevin