Really every version development team is overcoming this!
I only use free software in my project I'm proud to announce that Sweet Home 3D does not lose anything similar to any owner.
If developers allow me, I would suggest two tools that would help us a lot.
One would be to create roofs, for this part we ended up taking Blender. Leveraging, congratulations on internal rendering system, this very good.
The other would be a tool for creating stairs, both of iron, wood and masonry where she cut the mesh ceiling of the floor above and the floor of the rear floor.
----------------------------------------
Carlos Eduardo Design Livre http://cadunico.wordpress.com/ http://cadunico.art.br/