In Reply To:
You will be wasting lots of money if you go with one of the LED lights above since niether of them are rechargable. And anything that small that is rechargable will not have much life. Plus those light will not let you see anything but onlylet you be seen.
I'm hoping the model I just ordered (which is LED and is rechargeable) will be exactly what you're talking about here, good light output and decent burn time. I expect it to be given what I know of other Light In Motion products (they are fantastic, but their HID systems are $$$.) HID rules the night for off road and on road (if you're doing any kind of serious nighttime riding, why have less light just because you don't "need" it, more is always better in a lighting system provided it meets your burn time criteria and budget.)
We shall see how nice this little 218g sucker is. I suspect it will be pretty sweet for the price point. I see guys riding home with full face helmets, 3 or 4 red flashers, etc, but my Light In Motion HID blows them out of the water. So, if weight and cost aren't an issue, by all means go full bore with an HID system. But if weight and $ are a consideration, check out a rechargeable LED (or wait till I give my review.)
The front hub dynamo is cool, I looked into that, but it's a bit of overkill for commuting, and not enough power for my criteria for serious night riding. It's also not possible to interchange front wheels on bikes which take different wheel sizes (my tri bike is 650c, my road bikes are 700c) and wouldn't work for a recumbent, but these aren't tremendous problems.
I would put Light In Motion's products up against Niterider any time, I think they are every bit as good if not better.