Problem you are going to run into is no one can tell you how to do the right design, because it is very individual and to each users tastes and needs.
If you want to see how the whole process works then start with a basic Christmas set up, which usually is roof lines and have a controller run them. The next thing is usually trees wrapped or bushes covered, but hard to tell because that will be up to your tastes. budget and home layout.
Start small and grow from there.
Another good thing is to check out the light shows in your area and see in person what another persons tastes/likes are. You will find yourself saying.. oh i like that, but don't like that and then you start to have a design in your head for your own home.
To find lightshows check out the local paper, You are not allowed to view links.
Register or
Login, and what others have mentioned above watch some videos or find members that are in your area.
Hope that helps..
-JS