i though i gonna post this here too as perhaps some people might be interested in it. for use with Blender3D i create a Normal Map Generator to create normal maps for low resolution meshes like they are used in games. it composes of a python script exporting the meshes (hi res, low res) into a *.dim file that the normal map generator too can process. the tool itself is a c++ program running outside of blender.
if you want to try it out have a look at the Project Page containing informations, screenshots and downloads of sources and binaries of the initial 1.0 release.
feedback is welcome. happy trails.