i love my p3d100 and p2d. i already had some surefires so had and was used to the 123 batteries. i want to upgrade to the p2d100.

as far as the mag lights i had bought one of those conversion heads which was shyte. i bought one of the mag light led lites and i love it. it is slightly bigger than the standard version but i was pleaseantly surprised by the light.

as far as key chain lights i would recommend the knock offs from county comm. for a buck a piece they are probably the best light per $ i've found.