The MarcDuino v1 is a DIY board. In most cases, you'll need to build two boards: a Master and a Slave. The two boards are identical. The only difference is the firmware that's loaded on each.
Usually Droids run on 12V batteries. You'll need a good DC-DC converter to provide solid 5V to the MarcDuino and the servos, which take quite a bit of amperage. This 5V 9A switched power should do the trick:
For anything: http://www.adafruit.com/products/266 (1 pack)
Master Power Cable: http://www.servocity.com/html/battery_leads.html (1 or 2)
Mater to Slave Power jumper: http://www.servocity.com/html/male_to_male_extensions.html (optional, can be done with the loose cables above)