I gotta wear a helmet otherwise my head feels like its cooking out in the Texas sun. I got all kinds of helmets, but if I'm gonna ride the superslabs or it's a windy day, or if theres a chance of rain I wear my full face helmet. The down side of the full face for me is the noise. For some reason it is louder than wearing a half shell and I wind-up with ringing ears.
I was checking out the Davida line of helmets; they look prety cool, Check it out.

Davida Helmets

"The right bike is the one you like."