I agree with some of the previous comments to be concerned about being seen from multiple directions ... and to have redundant systems. I like to ride at night. It is easier to see the cars and, with proper lights, it is easier for them to see me.

My typical winter setup - Cygolite Mity Cross light on handlebars (I often get comments about how bright it is - even when set on low). Di Notte dual headlamp/red taillight mounted on helmet. Two Serfas seatstay lights on the rear seatstays. And finally one of those spoke lights (or sometimes I use the Tirefly's on the valve stems) on the wheels to aid in side visibility. Oh, and I use tires with reflective sidewalls. I also dress with care when I know I will be riding after dark to make sure my clothing has a lot of reflective areas.

My next investment is probably the Di Notte tail light which I believe is the brightest rear light sold. I just wish it didn't require the separate battery pack. I'm interested in the pedal lights - will have to check into them.

I want to see and be seen! Ask a friend to drive all around you and report back what's working and what needs to be improved.