If I knew how and if I wanted to, could I set up an online store on my site? If so coulud you give me suggestion on how to go about doing this?
You might want to check out nopCommerce: http://www.nopcommerce.com/default.aspx You can perform a base setup using the App Installer tool in the Control Panel, and I believe you can buy a manual from the developers for about $20. Otherwise, the application is free to use.
Also from past experience (I personally set up a few web sites that sold items online) - You will need to get a SSL Certificate if you will be processing the orders through your site. That way your customers will have a encrypted connection to your site. You can get a SSL Certificate through us by following our knowledge base article here: How to order and install an SSL Certificate Also, you will need to find a payment gateway to process money in the back end. This you will need to look around to find the right choice for you.