Mike, those look fantastic!

So far I haven't needed to use layout. I'm not an architect, and have not been asked to play the "designer" role yet, so I have not needed "presentation" grade drawings. I have seen some cool stuff that archtiects have created by importing my 3D sketchup models into their various systems. I also like to import 2D floor plans into my own sketchup 3d models, so I can verify post placement, etc.