I am in the market for a helmet, maybe. I am happy to spend up to $50 for a helmet that will keep my brain in place.

I currently use a skateboard helmet, partly because it was from my skateboarding days, and partly because I read somewhere that these helmets are actually more protective than bicycle helmets.

Is this true?

Other than speed and weight, is there a reason why I would want to switch to a bicycle helmet, and if so which ones provide the best protection?

Or is there another acceptable helmet (like a bicycle/skateboard hybrid) that I don't know about?

[protection is most important to me as I ride in heavy car traffic and do not trust LA drivers]

Lol, my research led me to this link:
http://www.raisethehammer.org/blog.asp?id=297
ughhhh