Editable Areas in Header and Footer

Hi All

I want to have editable areas in header and footer for the publication. 
For that I have considered following points:

    * There will be editable components (like header background, logo
      image, header text, footer text, links etc) in header and footer.
      These components will be decided at the time of development.
    * User will be able to change the logo, header links, footer, links
      etc. using CMS.
    * I'm considering meta data for storing this header and footer
      information/data, this meta data will be editable by user (using CMS).
    * User will change this header/footer meta data once and new
      header/footer will get reflected for all the pages (even on the
      creation of new XHTML document).


Please suggest
(I'm using Lenya 2.0.3)

-- 
Anish Sneh
Software Engineer
Techblue Softwares Pvt. Ltd.
www.technologyblueprint.co.uk