||My Favorite Macworld Product: Indigo|
Just a couple comments on using Indigo and the cost. I think the 65 W bulb justification is a bit off. Technically, every x10/Insteon device will always be drawing a little electricity all the time, and if you need to leave your mac on, of course it always would be drawing electricity.
Just a few thoughts. More than the financial side though, this stuff can just be plain fun. Nothing like having over dinner guests, double tap the light switch to kick off an applescript and have the lights lower, and music start to play from iTunes.