haha yeah, guess I had some serious prospecting on my mind ; ) It's been a long time since I've used(or even had) a headlamp.
The light I find most convenient these days is one that came with a cheap Ryobi battery power tool set. It's got a great beam, lasts a good while, stands up, and has a swivel lamp that will adjust anywhere from the floor to the ceiling(with similar angles outside)