Originally Posted by Kojak

Light & Motion makes some really nice rechargeable lights. I have a Stella 600 mounted on my bars (it's not a USB light however), and then a VIS 360 on my helmet which for commuting is maybe the most useful of my lights. I like having a light on my helmet that I can point where I want to see, or point it in a direction to "be seen". The tail light is quite brite as well and is up high so as to be more visible than something mounted on the seatpost.