I love night riding. LOVE IT. My illumiination lately is a JOS "Dynamoblock", an integrated sidewall generator-headlight combo, which is more than adequately bright and always, always works. I keep a spare bulb taped to the underside of my saddle, but have yet to need it. I run around with a PB blinky on my courier bag or (if I remember it) actually clipped to its mount. I also have two reflectors on the back, one on a chainstay mount and another on the fender, and am considering a second dynamo to run a 6v3w taillight, which would probably be overkill.
In any event, since so much of my riding is in the winter when it's dark 28 hours a day anyhow, I've really come to love my midnight rides. It's so still.