Can someone point me to a dynamic form example?

I'm very new to JSF.
Simply put, I want to be able to create a page that can have a dynamic form on it. A form with potentially several fields on it defined at run time. Making it even more exciting, it will ideally support the File Upload as well.
Do I need to create an entire JSF component for that, or can I assemble standard JSF components at run time and present the page?
Is there an example somewhere that someone could guide me to?

take a look at: http://jroller.com/page/RickHigh/20051130

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