Last year was hell. We brought I believe 8 laptops from our tech-ed department. We have a UPS (uninteruptable power supply) which is two car batteries and an inverter to keep them charged. The problem was that the laptop's batteries could barely hold a charge. That and the fact that we could only keep three laptops plugged in at a time to prevent drawing too much power through the inverter. It was a lesson we won't soon forget.
This year, we did a paper-based system, but with a quirk. We had a scanner that could read the forms (they were sort of like Scantrons with bubbles) that would constantly scan forms while people were scouting. It was a lot simpler (and cooler
) than last year!