In most projects, it's not practical to take the pictures for each step in front of a backdrop with proper lighting. In these cases, it's often still good to take pictures for the intro slide like this. A good intro picture will attract many more viewers.
Step 1: The Camera
Other than that, most cameras should work...use the best one that you have access to. If you don't have access to any cameras, one suggestion is to buy a disposable one, use it, and have them scan the images onto a disk.