Just a heads up to you guys looking for a fairly cheap but powerful light http://www.geomangear.com/index.php?...sqisp1rt2jiju0

Tons of forum threads on candlepower/mtbr/here about that light. Apparently around ~6-700 lumens, batteries (18650 cells) & charger + engine for $84 usd + shipping. I ordered one a couple days ago. Basically a dinotte 600L except $300 cheaper. Probably be real nice for some of your mtb'ers. Helmet mount available as well.