I apologise for the suggestion of HJC, I thought that if it was good enough for Ben Spies in World Super Bike and AMA Super Sport, the Carbon Fibre would be good enough for anyone. Trust me, the quality is not cheap. Besides, all helmets have to pass DOT or SNELL, and HJC does.
Some companies go beyond just passing DOT and SNELL ratings. A helmet has to fit right to work. Just go to your local dealer or Cycle Gear and try the helmets on. Arai has 3 different profiles I believe. Good luck and get the best fitting helmet otherwise it is pointless!!