+1 on the Fenix L2D. Fenix is a popular brand among the flashaholic crowd that are reasonably priced. Unless you want a physically large flashlight, there's probably a Fenix model that would suit you just fine--and you'll be amazed at how bright and how long these little lights can last, if you've never used one before. Note that even with the models that use standard size batteries, like AAA or AA, you'll generally get better performance using rechargeable NiMh batteries in them instead of alkalines because they can stand up better to the sustained power drain of these lights.