The MarcDuino v1 was conceived as a DYI board. While you can buy the v1.5 pre assembled, it can also be assembled from components and programmed by the user. Below is a list of components necessary to build both the v1 and v1.5 versions as well as the other components necessary to assemble a working MarcDuino set up.

Bare Boards
Available from Oshpark, you need to order 2 (one for the Master, one for the slave):

XBee Breakout Board
Needed to connect the XBee radio to the Master.

Power Supply
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:

AVR Programmer
Needed later to upload the firmware to the board. I like this Pocket AVR Programmer from Sparkfun:

XBee Programmer
To connect an XBee to a computer. Needed to program your XBee or WiFi radio, . Useful to test the radio links too.

Miscellaneous cables
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)
Order the components below, quantity is PER BOARD, so order twice as much for two boards: