There are a lot of great jQuery galleries to choose from, but the “ROUNDRR” plugin stands out as a circular gallery. If you’re looking for great circular plugin, this one of the better ones. This particular plugin has several different customizations, as well. In the provided link below, it has examples of each customization and how it works.
It has demos included such as pick mode, standard mode, tweets gallery, and autoplay.
The setup itself is very basic. It uses jQuery files, CSS and HTML provided in the examples.