I always import Poser first, fix the materials on them, scale to taste, then work on lighting to capture what I am after, than start adding Vue elements. I usally save the atmosphere I like, then change to the default until I get all the props/elements where I want them, then put the atmosphere back in, and begin a slow painful process of test render-fix this, test render- move that, until I finally get the image I want. Takes forever to get a scene created, and doesn't always work- in these instances I come back to it later (a year) and I can usually work out what I didn't like about it.
I find as I do it this way that what I had in mind in Poser doesn't always work as I had hoped, but the result always works out better.

...Insert some witty or thought provoking comment here...