after my surefire E2D my faverite light is my Mini-maglight (2 X AA) with the nite-ize LED conversion kit.
[Linked Image from pocketlights.com]

here is one you could proably find a better price somewere.
http://www.pocketlights.com/nite_ize_combo_upgrade_kit.asp

My dad has the fenix L1D Cree it is a super little light wat cool but $70+

JYD #25 Clinging to my Guns, Religion, and Scrapyards.