I don't know if this interests anyone, but I had a lot of fun with this site:
http://www.floorplanner.com/ which allows you to play around with floor plans by adding furniture etc; etc;
You can upload a scan of your actual floor plan and set it to a certain scale so that you can add furniture by exact measurements and give yourself an idea where things can go and so on. I plan on buying a lot of new furniture so this was actually pretty handy and giving me an idea what can fit where. I know that the exact measurements of a floor plan will most likely differ from the finished unit, but still - some thing to give yourself an idea at least...