I've never actually heard a good enough idea that I wanted to "steal" it.
Lots of crappy ideas that I don't want anything to do with, sure, but everyone who's ever come to me with a GOOD idea, I wanted to partner with them in building it -- whether it's 50/50 or whatever else is fair, I want them on the project, with some sort of input.
Then again, in retrospect, your idea sounds way easier than the shit I've been through for my "clients", and at the end of the day I'd probably make more monies that way too. I might have to steal this one.
oh btw, I actually started hacking around with some python last night, so I'll have a list of ideas you can steal from me pretty soon.