For this project you will need:

• Arduino board (25 €)
• Wii nunchuck (18 €)
• 2 servos (3.5 € each)

Total costs: 50 €

You should connect the first servo to Pin 7 (digital) and the other one to Pin 6 (digital), the + and – should pe connected in series to Vcc (5 V) and GND respectively.

The algorithm for Arduino is posted here.

(source: http://www.robotshop.com/ca//ProductInfo.aspx?pc=rb-lyn-74)