Michael, thanks for your answer, I can't do what you suggest because I can't afford to buy software like MAX because I don't really need it.
What I could do is use moi for modeling, export to obj for Maxwell rendering and use AutoCAD with 3ds export from MoI to make some detailing and dimensioning.
I believe this is easy.

Please let me add to small things.
I didn't write about text model because since I mention dimensioning you would do this anyway.
I would like to have dxf export too, Autodesk decided that 3ds format is limited and we can't have 3ds import in Revit and AutoCAD 2007