Using Orbeon to Design and Render Forms in a JSF application

Greetings

We are developing a e-process system, to manage, control all administrative processes. This system is based on Jbpm and JSF.
We are evaluating using XForms to design and render the forms used by the workflows, and I found out orbeon to be a great tool to create the xforms.

We are interested in acquiring the profissional version of the form builder, but I would like first to clear some doubts:

- Does orbeon creates the forms in xforms format?
- As I said, we are using JSF for the front-end of the application. I thought in interfacing the JSF with xforms some how. Has this being done, would you recomend using some tool? Would this be a very hard task?
- How could I integrate Orbeon form builder within my application?


thanks for the help
Regards
-Emerson