Sources for Arduinos and Shields

• http://www.sparkfun.com
• http://www.liquidware.com
• http://www.adafruit.com
• http://stores.ebay.com/NKCElectronics
• http://www.libelium.com/tienda/catalog/
• http://www.seeedstudio.com/depot/
  • Seeeduino: http://www.seeedstudio.com/depot/seeeduino-v11-fully-assembled-arduino-compatible-p-114.html

Lead free solder paste: http://stores.ebay.com/Electronics-Prototyping-Specialists

PCB Services

• http://www.seeedstudio.com/depot/propanganda-pcb-service-for-open-source-pcb-p-111.html
• http://www.batchpcb.com/

Frame Material

• Carbon Fiber: http://www.dragonplate.com
• Aluminum/Plastic: http://www.onlinemetals.com

Plastic Fasteners

• https://secure.microplastics.com/default.aspx

Alternate Sensors

• Dual Axis Gyro: http://www.seeedstudio.com/depot/dual-axis-gyroscope-idg300-p-208.html
• Triple Axis Accelerometer: http://www.seeedstudio.com/depot/wiimote-3axis-accelerometer-module-adxl330-p-107.html
• Triple Axis Accelerometer with I2C or SPI: http://www.sparkfun.com/commerce/product_info.php?products_id=758
  • How to setup: http://www.nearfuturelaboratory.com/2006/09/22/arduino-and-the-lis3lv02dq-triple-axis-accelerometer/
• Single Axis Gyro: http://cgi.ebay.com/Lot-3x-Inertial-Rate-Gyro-Sensor-Humanoid-Robot-GPS-MCU_W0QQitemZ150326350157QQihZ005QQcategoryZ67003QQtcZphotoQQcmdZViewItemQQ_trksidZp1742.m153.l1262

XBee

• http://www.sparkfun.com/commerce/product_info.php?products_id=8742
• http://www.faludi.com/code/xbee-api-library-for-processing/