I work (summer job) for my fathers company who distributes safety equipment(just a poor mans website  
web page ).  We sell a flashlight line called Underwater Kinetics ( 
web page ).  They are very durable, and last.  They meet some Ansi or Osha standard that required them to complete a drop test (30 Feet 30 times on concrete).  There is a 2AAA that attaches to your hat, and around christmas you may find one with a mini army knife included.  They also make that model in led.  the UKE 2L Lithium Light is also a great choice that emits an extremely intense beam for its small size, and the batteries have a shelf life of up to 10 years.  Please note I am speaking on behalf of the industrial line. <img src="images/graemlins/smile.gif" alt="" />  Dont let me discourage you from a streamlight, for we also sell them, but are not active in selling them, because there is not much new.  Also look at uk's dry boxes, I happen to have fallen in love with their durability. <img src="images/graemlins/cool.gif" alt="" />