I just bought a Coleman Max at wall mart that is 115 lumens and a tail switch it has a range of 62 meters (I think) for $25 it is bright! The tail switch is not as tactical as I would like but it works. It has a 5 hour run time and is right at 1'' wide IIRC and about 5" or 6" long. I'm going to see how it holds up and if it's good then there is a smaller one there that takes smaller batteries (kinda like the cr123's) that I want. Just a thought. I'm carrying that light right now and it's just big enough to be comfy in the hand and small enough to be comfy in my back pocket.
That would just about do it.After living through 17 days of no electricity after Ike, the Cr123 battery is my choice hands down!!