Hopefully, some of the poser user's can chime in.Unfortunately anytime you are asking a program to completely take a very complicated and proprietary format and import it better than the original program is asking for alot. I would say to check out the yahoo list maybe and eovia's site.The gallery may also help you. http://gallery.eovia.com/ Look at Markus Rothkranz he does some pretty advanced poser stuff. Rendered & MM in Carrara.

No need to think outside the box....
    Just make it invisible.