10 Free CAD Software You Can Download
First In Architecture Cad Blocks Selection
Free CAD Program
3dprintuk: Free CAD programs
Free 3D CAD software and large associated model library. Particularly for digital architectural renderings.
SketchUCam is free plugin written for the Google SketchUp cad program that allows the creation of Gcode to control your cnc machines and bring your SketchUp creations into the real world!
Free Landscape Design Software This page has info on free design 3D and 2D software from Google.