This is a list of things that you will need to complete this project. All of these are available at most electronic components stores and online retailers:
The Raspberry Pi
A relatively large SD card (at least 8 GB is recommended)
The Pi camera board
A GPS module (http://www.adafruit.com/product/746)
0.1 inch female to female pin jumper wires
A USB power bank (this is optional and is used to power the Pi when no other power is available)