I have a petzl headlamp and love it. A few personal preferances on headlamps.
Get one with a red filter that flips on with ease, With the red filter on it does not destroy your night vision and is easy on everyone around you. As you do not blind them.
The ones with the batteries on the back and the strap over the top are a pain. Not as easy to deal with over top of hats, hoods, etc.. The single band is easier to put on anything.
I got one of these
http://en.petzl.com/petzl/LampesProduits?Produit=482
Then soon got another, I used it camping, hiking, working on the car etc... no complaints. And its much brighter then most headlamps I have tried.