NightSun Team Issue.

http://www.night-sun.com/htmldocs/team_issue.html

For that kind of money, you can get a real light. This one is about $180, but they have others that are brighter for closer to $250.

For the past 4 years, I've have the team issue in the front and a blinkie in the back, but NightSun also makes a compatible rear light. I've completely crashed this light before and all I had to do was replace the bulb.