I am currently building an Arduino Duemilanove based robot with servo driven differential steering. I am using a protoshield and a motor shield stacked on eachother. I have ordered two GWS continuous rotation servos to use, and I would like to run them on a full 6V separate from the microcontroller. I am looking for a cheap Nimh pack and charger (already over budget) and a way to hook it into the pins on the motorshield or at least a way to connect it to the servo. This is my first non BEAM robot build and I am pretty lost. Any ideas on hardware would be appreciated. Peace.