I have the new Niterider 600 newt - its a very nice package in a small, self contained unit. It comes with a good handlebar mount AND a easy to use helmet mount. The only real complaint is the battery life on high (600L) is about 1.5 hours, which is still useable for commuters. I use the light on medium (400L) and it lasts for 3+ hours and its plenty of light for city/suburb commuting. I like it so much I'm going to get another as I like light. I'd suggest buying the light at REI - you pay full price ($150) which isnt much more than the internet price (120 range) and you get the bombproof, take it back anytime for any reason warranty - well worth it in my opinion.