Another approach, while still in your modeling program (and remembering that I'm working in Lightwave, so YMMV) is to also have smoothing on in your materials in the modeling program, at comparable angles to those normally used in Poser. Wherever you see a smoothing artifact in your model, split the vertices. This is my first step in producing artifact-free models for Poser - I occasionally miss one or two, but it makes the transition a lot easier. Sure, it's tedious, but it pays off :-).