I've never done studio lighting or used anything other than a shoot through umbrella with a Vivitar 285HV. So I'm now thinking I should start experimenting with source lighting. any suggestions on what I should be looking for? My budget is small and my skill is even smaller. Would a simple shop light with a diffuser on it work alright or should I just go ahead and get a decent light? What brands should I be looking at? Where should I shop? I'm a total beginner when it comes to this so any help is greatly appreciated.