I'm not really sure if bump maps work or you have to enable shaders for it to work only but i haven't seen people use them anymore.

I had an idea when i was watching tuts for autodesk mudbox and zbrush and saw a tut on 3d texturing with mudbox on the forums.

Would it be possible to have different maps added to the texturing options along with other texturing maps of the sorts. to give the game that much more in depth look?