Battery space has battery packs, chargers, and lights (Including bike specific lights) that are already packaged or you could build your own.
I used some of their NiMH battery packs and chargers to refurbish an old set of Nightsun Halogens that I already had for a fraction of the replacement cost of the old NiCad battery.
http://www.batteryspace.com/index.as...S&Category=499
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98 Colnago Altain
08 Pedalforce RS2
00 Specialized Stumpjumper FSR
06 NYCbikes Single Speed (John Deere Special)