Can’t answer your question about the Bern helmet, but I can recommend the new Bell commuter helmets — just got a new one! I use the rear light mount, which is nice because I can reach back and turn it on or off without stopping. And it’s nice to have the built-in smaller rear-facing lights as a back up. http://albanybicyclecoalition.com/2011/04/22/new-commuter-helmet-from-bell/
I like the easy fit for when I have a hood or beanie or sweat rag on under it.
It has a lot of coverage, so probably will get pretty warm in the summer, though…
RestonDC, I’d have to pass on the Bern. While it looks like a nice helmet, the almost total lack of ventilation would cook my head like a pressure cooker. I could see it for a great winter helmet, but moving into summer? I’d have to pass.
I tried one of those Bern helmets on at Bike Space a few weeks ago and instantly liked it as a winter helmet. Of course since it was the beginning of April and I was looking for a summer helmet I put it back on the hook. I will probably look for them to go on sale before the winter since it really was a warmer design but as noted by CCrew it would have been insufferable in a DC summer.