cynb,
If you go to the VSN forum site you will find an area that is all about minimum technical standards for MS video/audio recorded products. In addition, the camera must be capable of being hidden inside of something like a shirt button. The PV-500 Lite is the current equipment of choice, but you must pay extra to upgrade from the standard button camera for it.
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www.videoshoppingnetwork.org]
total cost from the best source will be around $300 for the basic set up. You would do best to begin by using the equipment that the video MS companies will sent to you on loan, and will help you to learn to use before you spend any money on your own equipment. Some people find that the really hate doing video. Give it at least 3-5 shops, from at least two different companies, before you decide, is my advice. Once you own your own equipment, the shop fees will increase as a bonus for them not having to ship equipment to you.
Based in MD, near DC
Shopping from the Carolinas to New York
Have video cam; will travel
Poor customer service? Don't get mad; get video.