@umbra21 - This is one of the reasons it would pay to go into being an electrician at the moment. People may once have tried to do this kind of thing on their own, but now most people will just call an electrician.
They should probably still try to know the basics though, like how to choose the best kind of switch. Trusting the electrician to know what to do only works if you know you can trust him or her. And you'll only figure out if they really know what they're doing if you know a little about the job yourself.