Form 2 - The most advanced desktop 3d printer ever created
Floorplanner - Floor plan interior design software. Design your house, home, room, apartment, kitchen, bathroom, bedroom, office or classroom online for free or sell real estate better with interactive 2D and 3D floorplans.
Obsidian 3D Printer - The $99 3D printer
Sweet Home 3D - Sweet Home 3D is a free interior design application that helps to draw the plan of house, arrange furniture on it and visit the results in 3D.
Glowforge - The 3D laser printer
SketchUp - 3D for Everyone