We recommend you download and install the following modules in order to make the most of your Omega based theme. More on installing modules.
Make sure you are running the latest stable releases of all modules to ensure proper functionality. If you are using dev releases of any of these modules use the dev release for all in order to maintain compatibility.
(requires Ctools) - Omega Tools is a great set of functionality that will help you to easily create and manage your Omega subtheme. This tool is useful in development but should probably be disabled in production environments.
Delta is a powerful tool that allows you to create variations of a theme's settings without having to create a new subtheme. When used with Context, Delta allows you to edit the omega grid, zone, and region settings and create all new layouts based on the various conditions available in Context.