Activating the publishing features will allow you to use a webpart called "Table of Contents". PublsihingPublishing features need SharePoint Standard Edition. This will let you display the contents below the current site in many different ways. A list auf webpartof webparts can be found here:
http://www.wssdemo.com/Pages/webparts.aspx
But activating publishing features is comingcomes with some restrictions. TheFor instance, the site willcan not be able to savesaved as a template, but there is more, so think twice beforbefore activating on any random site.