Also your website needs something more such as a shopping cart system, you will need to research the different shopping cart system and their features and functionality. There are many free shopping cart are already existing and widely used such as oScommerce, zencart, cubecart ( Most of them support the popular payment gateways like paypal, 2checkout etc ) that you can easily integrate into your website with the help of fantastico script installer which comes with your cPanel Hosting plan.

Other than free shopping cart you can use a paid version as well which are generally costly but they are without doubt worth every penny if you need customize shopping cart solution for your specific need. However you will find that majority of web hosts will not install them for you as it is not part of their service but if you are in hosting package which accomplished with hosting services like VPS hosting or dedicated server hosting they can install it for you.

For a new business website it would worth to go for cPanel hosting that let you install such software easily that which are supported by Fantastico script or in case you need a customize solutions you can hire a developer to install it for you and customize it well. Also the hosting providers that provide knowlegebase is worth that will help you in the learning curve and it would be too great to start on your own.