Jake,
Others will most likely ID a best value battery. After that I got you covered. I would still recommend the Brat for the PWM charge controller. I would go with a Mono or Poly crystalline panel in the 80-100 watt range if you have the room. A 50 watt panel is as small as I would go for light use. Use good multi-strand wire and enjoy. Don't cheep out on the connectors and install. Using cheep components here equals lost energy.
