This is my current setup:

$35.00 -http://dealextreme.com/details.dx/sku.19189 - it's a 3-mode P7 SSC light with 900 lumens and 1.5 hour runtime
$6.00 - http://dealextreme.com/details.dx/sku.3435 - two batteries
$7.00 - http://dealextreme.com/details.dx/sku.936 - charger will charge one or two batteries overnight
$2.00 - http://dealextreme.com/details.dx/sku.12000 - mount for under stem

I have used this for the last two months with no problems. I am selling my Dinottes.