Floorplan Software for Macs?

jgardner asks: "I was asked by my employer to create a scale drawing of the floorplan for our company's buildings. Using Illustrator or Freehand and building everything from scratch seems too time expensive. I spent a long time online looking for a program which is designed to create floorplans, but only found expensive, high-end products. I need something inexpensive, and it just needs to draw flooplans. No 3D modeling, or walkthroughs required. There are plenty for PCs that are under $100. So far for the Mac, I have only found Architecture 3.03, by Abracadata. This program was originally written for OS 6.x, so it is very old, and has severe limitations. Does anyone know of a better Mac alternative? Maybe even an inexpensive set of tools for Illustrator or Freehand? Preferably OS X, but I can boot into 9 or operate in Classic if forced to."