I just bought one of these: Peak LED Solutions "Matterhorn" AAA

As in, I just placed the order a few minutes ago. Looks interesting. They have several different styles for different battery sizes. I'll post again when I get it. Review looks good, though.

CandlePowerForums Thread
FlashlightReviews.com's review

I agree with SgtMike88Ret. An Arc AAA is a great choice. I have one on my keychain right now. I've given them as gifts. Rock solid, water proof, dependable. I have both the regular and premium versions, and in my opinion, the premium is not worth the extra money. It's not any brighter, just a little "whiter" (but not very).