If you are a Linux master, then you probably will not need that much additional help. However, it is nice to get started up as fast as possible using some of the customized features of certain hosting providers. For example, Media Temple provides a control panel so that it is easy to monitor your website’s performance. You can install web monitoring tools on your own as well.
A gaming server is a dedicated server used for online games such as World of Warcraft or Minecraft. The benefit of a dedicated server for gaming is that your server is often more stable than the game client itself, which is impacted by multiple players and resources. For a smooth gaming experience that you control, a dedicated server is the way to go.