I (obviously)have a computer, and could certainly use it to program an X-10 controller. What I'd like to know, though, is if one is required. Can I use my Pronto with an IR transceiver and lamp modules, and not need anything else? I'm talking about dimming or on/offing at most 3 lights in one room. I can create macros in the Pronto, so I see no real need to create them in an x10 computer interface.