I use SmartSketch for my drawings. Turbo Cad is great also. There is Chief
Architect that is easy to use also. Just make sure that you can set up your
original file prior to starting the drawing and save it under the default name.
That way when you open the program it has all the settings ready for you to use
and you dont have to go through the default setings again. Autocad is a very
complex cad program although I have heard that the lite program is much easier
to use. I cant say that I have had any experience working on it.