I have been playing around doing some family portraits with my wife and daughter. Given that this is a hobby for me, most of the money I've spent on this has been in the form of the cameras themselves and lenses. Therefore, my backdrop consists of a neutral colored sheet and work lights such as that in a workshop (w/ 75w bulbs). If I got actual photography lighting, what kind of money would I be talking about? I'm looking for most bang for the buck, budget lighting. Like a primary, fill light, hair light, and background light at the most.