Quantity   Component name
1 × Motor driver board http://www.pololu.com/product/713
2 × Motors and wheels https://solarbotics.com/product/gmpw_deal/
1 × Ball Bearing Caster http://www.pololu.com/product/953
1 × Arduino Pro Mini 328 https://www.sparkfun.com/products/11114
1 × 7.2V 200mA monocrystalline solar cell http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=4368552&csid=_61&rrpl=item_page.content1&rrstr=ClickCP&rrindex=0
4 × Microswitches (for obstacle detection) http://www.sciplus.com/p/DEFOND-3A6A-MICROSWITCH_49704
1 × USB / DC / Solar Lithium Ion/Polymer charger - v2 http://www.adafruit.com/product/390
1 × RF Link Receiver https://www.sparkfun.com/products/10533
1 × RF Link Transmitter https://www.sparkfun.com/products/10535
1 × SparkFun 5V Step-Up Breakout https://www.sparkfun.com/products/10968