I saw Daz3D released Hexagon for free. I've used Hexagon 2 since release and it's not a bad tool, it's got decent features and up until 2.5 I found it to be buggy on my computers, though other users didn't really seem to encounter those problems. It is aimed at modelling, UV mapping and even on model texturing (though it's on modelling texturing isn't as well featured as Bodypaint 3D, but then Bodypaint 3D has a heftier price).
If you're willing to spend money on a 3D modeller, Silo 2 is like Hexagon in terms of features, except, in my opinion, loads better. The reasons I think it's loads better is because it's really well designed and ergonomic, which I think is pretty important for an artist. Its tools are pretty intelligent. Some of my greatest models have been done in Silo's demo.
What about the animation and exporting to DBP? MilkShape 3D, it may be pretty bare bones, but it's cheap, it's quick and easy to set up an animation and it exports to an incredible number of file formats.
You could easily:
Hexagon 2 -> .obj -> Milkshape3D -> Animate -> .x -> DBP
Though I've found it's a good idea to triangulate your model before sticking it into MS3D.
