I've been a commuter for a long time, but I've never needed anything more than "be seen" headlights on my commutes. I've kept my recreational dark riding to a minimum (maybe an hour in the dark at most), so I've never felt the need to buy a "see" headlight.
My work schedule is changing soon and I'm going to have to do more of my recreational riding in the dark, so it's time to invest in a good headlight setup. I want quality stuff, but I can't really justify some of the $500+ lights out there. Any help would be appreciated on what you would recommend with about a $300 budget. Would you go for one light, or would you go for one on the bars and one on the helmet? I do like the idea of a helmet light because there are some twisty downhills around here where that could come in handy.
Obviously safety is number one, but I'd say battery life is the next highest priority after that. I'm not too concerned about how convenient the mounting hardware is because I won't be commuting with it. Lighter is better, but weight isn't a high priority on my list. Nothing personal, but I'm not interested in a Dynohub at this time.