JSF and module/plugin based developement

Hi all,

I would like to develope a web application that can be extended using a plugin style framework. Ideally the main application would handle general look and feel (through css and page headers and footer), user authentication and navigation to all the availible plugins. The plugin would be a self contained module perhaps making use of some common libaries and handling it's own internal page navigation.

The big question is...how well do people think JSF is suited to this style of application, and what other technologies might be needed/used to help? Would another technology (other than JSF) be better suited perhaps?

Thanks for everyones input,
Tim

Take a look at the Portlets specification, it actually uses JSF in it, I think this is what your after