For the record, I already have a flashlight mounted to the helmet. Before I decided to encompass cycling as part of the commute, said flashlight was in my backpack.

I'm also having to deal with my wife's attitude- about cycling in general, and cycling specific gear in particular. Basically, if I don't shop at wally world, then I'm "spending too much on something you're not gonna do anyway". She's firmly in the quantity camp and I'm in the quality camp.

My lighting requirements are minimal (emergency use) for now. In the future? Who knows?