Dont know exactly the specs but SF is coming out with a new L5 with cree this summer! 120 Lumen, the right way clicky! Think its regulated but am not sure at all.... Im getting that if I can get hold of one when they are realesed!
I suggest a SureFire 6P (not HA III, but tough) with one of the new Cree drop-ins. G&P, Wolf-Eyes and others sell suitable drop-ins. SureFire quality with Cree power. What's not to like?
If you are interested in the "Ultimate"-
Here is a link about my Gladius lights I had modded by one of the CPF members.
this is officially my favorite light!!!