The model converter supplied with DB will do the job fairly easily, although your still gonna be stuck for limb hierarchy's etc. I use it with 3DS-Max and a few texturing programs.
Ohh, and a few pointers for making low poly models in Rhino:
o Use extruded polylines for everything you can - then convert from a nurb to a mesh with the simple control slider down at the bottom - this is the best way to maintain minimal polys.
o Never use the polygon reduction tool, it severely sucks.
o If you wanted to model a leg for example, make a stack of extruded polylines by copying and pasting, then join them all together and convert to a mesh - gives you the shape but with editable points all the way up.
Van-B
My cats breath smells of cat food.