If you plan to use cPanel in managing your website, then its always a good idea to get the package that includes the WebHost Manager (WHM) application as well. Together, these two offers users an entire host of powerful tools that comply with key tasks in webhosting with ease, speed, and reliability.
cPanel will mainly be used for hosting an individual website. Through it you can upload and manage various elements to your web pages as well as complimenting them with plugins and features (i.e. shopping carts, forums, etc.). You also get to store you data and back it up.
WHM, on the other hand, takes a step back and manages the web administrators job. It makes it easy for you to manage multiple accounts, add applications, and establish domain security protocols. You also get to brand your customers using cpanel hosting with unique logos.
Indeed, this wonderful software package makes life easier for webmasters and web hosting resellers alike.