I want to diagram the floorplans of the house. Before I even went looking for cheap/free CAD software, someone clued me in to
QCad, a free/inexpensive 2D CAD program for Linux, Mac OS X and Windows. Source is GPL'd, so you can download it and use it for free if you build your own, and they distribute and license binaries for a fee. QCad Professional one-user is $26.
This is BrainLog, a blog by Dan Sanderson. Older entries, from October 1999 through September 2010, are preserved for posterity, but are no longer maintained. See the front page and newer entries.
November 2, 2004