Excellent suggestions, and thanks for pointing out that thread in the marketplace coder!
I should point out why the L1T has been prefect. It is small, light weight and fairly bright. The single cell lasts over an hour on high (which means most nights it may require at most 1 battery change). I use this primarily as a helmet light for mountain biking and commuter biking. When its not in use the light and four spare batts stay in my pack parmenently so weight is premium. Further, I prefere the AA format as NiMH rechargables are more robust than Li-Ion and I have had better results in cold weather/high drain as well.
Nothing wrong with my L1T (although either its beginning to dim or my vision is decreasing...), just been out of the flashlight loop for a bit and curious if perfection has been improved upon (4 7's latest email with the quarks peaked my curiosity). Again, thanks for all the suggestions, hopefully nothing fits the bill