Attached Link: http://www.3drad.com

Check out 3DRad. There's a free version to check it out see if you like it or not.

You'll need to export your poser models, and you might find they're a bit hi-res for a game (speed and other inherant complications that might crop up), but like I said, there's a free version, so gotta be worth a look!

Good Luck! - Anthony