But, if you're hiking in the dark on a trail that's apt to toss roots and rocks your way, or if you're on a bike or doing some trail running, then it's still helpful to have the extra light thrown out by an incandescent light. LEDs just don't have the "reach" to light things up that are 15 or 20 feet away. But I do like the hybrids you mention—headlamps that combine LEDs with a halogen or Xenon bulb. That gives you the best of both worlds—an economical LED light when you're reading or fiddling with gear in camp, plus a more powerful light for navigation or other purposes.
There are several excellent hybrids out there. The Black Diamond Helion ($45, www.bdel.com) has a bright Xenon bulb and three LEDs for close-up work. It takes three AA batteries, and while Black Diamond doesn't list battery life, my guess is you'd get up to 24 hours on the LEDs, two to three with the Xenon. The bulbs themselves should burn for around 220 and seven hours, respectively. For something even brighter, Petzl's Duo Hybrid ($85) uses a focused halogen incandescent bulb and seven LEDs. It takes four AA batteries, so you get a little more time per battery change than with the Helion, although of course it's also a little bulkier. But either would work well for you.