The helmet I love to wear hasn't been mentioned yet. It is more pricey, but I have three of them now, purchased on sale. The helmet is the Rudy Project Sterling: http://www.e-rudy.com/index_inner.ph...id=3&cat_id=88

My Madone is orange and yellow. I wear the Rudy Sterling helmet that is yellow and blue when I ride my Madone, which is my primary bike, and members of my training groups tell me I am visible for a long distance, even when I am in the shade of trees or it is raining.

There is a pink version for those of you with pink bikes.

The Rudy Project Sterling is the best helmet I've owned, fits well, adjusts well, ventilates well, and protects well.