I have just been an observer on this site until now but I would like to jump onto the X-10 bandwagon. Before I do, I have a coulple questions:
1) I have noticed that most everyone refers to the IR543 and Chris says that the 2040 is the same part, different number. I assume this means that all codes on this site for the 543 work on the 2040. I have a Pronto so this is important.
2) My house is small, 1700 SqFt, and I was wondering if I could get away with not buying a amplifier/coupler. The house is only a few years old if that makes any difference. Also, I have the basic devices connected: computer, tv, refrigerator, etc.
3) Initially I plan to start off with just two lamp modules but I will be adding some wall-switch modules (to control an overhead light/fan) in the near future. Is it very difficult to install the wall switches on your own? I consider myself a capable person but my knowledge of electrical wiring is limited.

I would appreciate anyone's advice/help.
Thanks, Will