I'm looking at a 12 hour this month and a 24 hour next month, first time doing that kind of thing. Lap courses. Just looking to finish. No huge fast decents I think that require massive lighting. I have a two year old NiteRider Classic dual beam with bottle battery and a one year old NiteRider Storm HID. I usually run the Classic on my bar and the Storm on my helmet for weekday at night after work. However, the Storm is somewhat annoying as the weight makes the front of the helmet flop down. Nice thing about these lights is batteries and chargers are interchangable.

What additional lights/batteries should I get? Thinking of a light weight LED for helmet and run either of the NiteRiders on my bar, swapping out the batteries as needed. Or should I spring for a top quality bar mounted light.
Thanks