Bonedr: If I were to use off camera flash, do I have to get a radio trigger? Or can I trigger it with my pop up flash?
Maybe not. If you use Nikons, they make accessory SG-3IR, which snaps onto your camera and triggers light-activated off camera flash units (InfraRed, line of sight only, cheap). Also, a long PC cord works in some cases. If your flash has a PC connection, PC cord light triggers are available that can be taped to your light stand in any position. If not, light triggers are available to fit under the flash unit shoe. Wireless is your more expensive option.