You'll find a wide selection of on-camera lighting here - http://www.campbellcameras.com/shop...ories/on-camera-lighting-and-accessories.aspx If you're on a budget I'd look at the Sony Video Light for $85. It will get the job done well enough for most people. If you can swing it, one of the new Microlite LED panels is really the way to go. They brightness is adjustable so you can turn them up/down based on needs, and batteries last a long time.
I just talked to one of the guys from Campbell Cameras yesterday, and he advised going with one of the LED panels also, like what Justin mentioned. There is one on there for under $100. Good luck with your search.
