I have worked with AutoCad Architecture since 1994. I have been working with Sketchup Pro for 3D models only for a year. I like the links posted on how to use Layout. Think I will finally be able to abandon Autodesk..after I practice some. I love SketchUp. I like AutoCad for some things...I used to model in 3D, but have not done so ever since I got into SketchUp...I think everyone ought to leave Autodesk due to their non-cooperation, and lack of improvement over the years.