Spray new bike with teflon to repel dirt and moisture? I'm getting a new road bike.  Would a light spritz of teflon spray help in repelling dirt and moisture?  I wouldn't coat it completely, just focus on those dirt collecting areas, the undersides of the frame, the crevices on the brakes and derailleurs, etc. and of course not the brake surfaces. 

It's an "internet bike" I'll assemble myself, so I don't have the guidance of an LBS for these things.
Back when I had a shiny new bike, I used to use car wax on the frame to keep the paint shiny, and at the time I thought it made cleanup easier because I could simply rinse the frame with a little light rubbing to get the dirt off. But I've never waxed my 3 year old commute bike and it's the same - rinse and a light rub gets the dirt off (unless it's greasy).

I haven't tried Teflon spray, but I'd be worried about it getting on the brake pads and rims, no matter how careful you are.