Thanks Franenbiker!
I found out today that the Vector Power Pack was discontinued and my order was cancelled. Instead, I bought a 12volt 5amp hour SLA from radioshack today... smaller than I thought it would be (but just as heavy as I imagined

. The guy at radio shack said that 10amps was too high of a fuse and that I needed a 3 amp fuse. What do you guys prefer? Auto fuses, regular fuses, or the circuit breakers? I found some 5 amp auto fuses... will that be okay? How do you determine what size fuse you need?
I also found a local Mom & Pop autoparts store that carried red LED Beehive taillights. It uses less than 1 watt. They also had some plastic driving lights (night blasters). I bought 'em and already have destroyed one trying to mount a toggle switch inside of it.
I bought a triple switch toggle so I can flip between a 10 watt headlamp for city streets and a 20 watt one for dark rural riding. Where do you guys mount your switches?!? I think I'd be able to mount a push button type of switch inside the lamp... but would a push button switch hold up in rainy weather? The toggles at least have rubber caps you can purchase.