Hexagon's $1.99 price was time limited and has now expired. It does have a relatively flat learning curve, and it does concentrate on the kind of modelling you need for Poser and D|S content; other options would include the free www.wings3d.com or www.blender3d.com ( or for Windows only www.anim8or.com ).

In order to make the model posable you still need Poser - DAZ|Studio does not yet have rigging tools. However, for static props D|S is fine.