Arduino Stepper Motor Shield: Parts list.

1 x 780x - x = the voltage of your stepper motor power circuit

1 x Heat Sink - size to suit the application (the PCB has provision for cooling fan power if it is required).

1 x L293D Bipolar stepper motor driver

1 x ULN 2003AN Darlington Array

1 x 4002 diode

1 x 1uf capacitor

1 x 100 uf capacitor

2 x 16 pin IC sockets

2 x 4 pin connection header 

1 x 6 pin male header

14 x pin headers 

Disclaimer - while no problems have been experienced with this set up - please use only at your own risk.