carrot said:
UK 4AA eLED Zoom... fairly inexpensive but uses alkalines and features dual stages of output...
Another vote for UK 4AA eLED Zoom. A very rugged, totally waterproof, compact light with superb focusable, two-level output. Can be had for about 40 bucks.
Also, the SL PP 4AA Lux can be had for less than 30 bucks. Not as compact as the Zoom, but just as rugged, and a better thrower.
Get both lights for less than 80 bucks and you are all set.
Unless you are a cop, special forces operator, or similar occupation, you don't really need anything beyond these two lights, except possibly a key chain light and a headlight.