New 3d GPL CAD program at- http://www.cadcam.co.at/freiter/gCAD3D.htm Or at least new to me as I haven't heard of it before. Claims to have a DWG importer. Thought I'd post it since the topic of CAD burbles up from time to time. Still a qcad fan myself, but alas, only does 2d http://www.qcad.org/index.php3