XML and forms

Hi,

I've produced a site where my CMS spits out XML and this is rendered into 
webpages using XSL.  I'm pleased with the separation into data and 
presentation.  However, the part that is left involves forms - registering, 
changing details, etc...

Has anyone got some pointers on how to proceed with this whilst still 
maintaining a good separation between data and presentation?  I was toying 
with the idea of writing the forms as xforms and using xsl to transform 
them, but as I wouldn't get to use any of the marshalling or validation 
features it seems like overkill.

Any practical advice would be most appreciated!

Thanks

--pete

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