A covert video system can be purchased as one package. It can cost up to $1500 for the everything, but it is easy to use.
The easiest place to purchase video surveillance equipment would be home improvement stores such as Lowes or Home Depot. Both offer systems with a range of prices. Best Buy also has video surveillance equipment as does Walmart. Online is another option with sites such as Amazon and Ebay.
In order to have a video conference the easiest way is to have a computer with a webcam. Also, you will need speakers to be able to hear the other person.
I put the game on novice because im not too good at video games.
There are several places where you can purchase cheap audio video equipment cheaply. The easiest way is to visit an A/V refurbishing site (such as http://www.refurbdepot.com/). If you don't trust refurbished equipment, try a site like overstock.com which specializes in whole-sale technology.
The company SP Video is rental company in the US midwest offering rentals of video equipment, audio equipment, lighting equipment and staging equipment and the like.
Windows Movie Maker is the easiest to use. It is a program for beginners or novice users. Other more sophisticated software applications out there offer more, but are harder to learn. Unless you want to make a career out of video editing and use such software, stick to Windows Movie Maker... it is the easiest to use.
It is not that difficult to install the AMERICAN VIDEO EQUIPMENT 2148.
Check out this site to help you find and price out video conferencing equipment. Or even this site will help: http://www.amazon.com/Polycom-V500-Video-Conference-Equipment/dp/B0002J1GCU
It is not that difficult to train cashiers on the AMERICAN VIDEO EQUIPMENT 2148.
Amazon sells very little video-conferencing equipment. It is probably best to shop a specialty telecommunications store for this. They do have the Polycom V500 Video Conference Equipment by Polycom for about $2,400.
The AMERICAN VIDEO EQUIPMENT 2129 will work with any cash register.
SIC 3663 covers makers of studio audio and video equipment