Just another "lay of the land" thing... 

As BionicRooster says, Poser is not a modeling program.  Generally speaking, Poser models cannot be legally exported to games like the Sims (though I realize many people do it, even selling them for a profit).  We've had people show up here asking for help in pirating Poser content to Second Life, the Sims, etc.  Don't do that.  You may think it's silly, but copyright is very important to us here at Renderosity.

If you learn a real modeling program like Blender or Wings3D, then using the models made in them in games is fine.