Counting and Timing a shock sensor

Development Boards Arduino
2

This is a pretty simple task for something like an Arduino.

I would buy:

Arduino http://www.sparkfun.com/products/10356

Serial LCD display http://www.sparkfun.com/products/9066

Pushbuttons http://www.sparkfun.com/products/9336

Buzzer http://www.sparkfun.com/products/7950

The only thing that worries me is your shock sensor input at 3V. In an ideal world, the signal would be enough to trip a 5V logic Arduino input, but in the real world it might have issues including noise. But nothing that some extra circuitry would not solve.