HDS Systems Ra Clicky 170 Tactical and Surefire Minimus headlamp. Bases covered. Forever.
+1 Couldn't agree more. Though I'd buy the full-blown SureFire Saint instead b/c it can always be converted quickly into a Minimus. This is usually the setup I bring into the backcountry: a headlamp and a high-end flashlight.
Powerful lights are great [I have a modified SureFire C2 which pumps out 225 lumens], but they're terrible for reading, general camp prep etc. The HDS Ra is great b/c it's super small, but sports the ability to customize the output levels. Not to mention it's highly regarded as one of, if not the toughest, light on the market.