simple CMS with templates?

Dear all, we need a php expert who allready has or can create a simple cms system for us who can deliver it with at least 50 different template. CMS need to be able to install extra modules on it (frontpage slideshow, gallery, guest book, all kinds of form, calender, upcoming events. easy to change color of menus, we are working on a business just as (website)www. smart box. an please check it out. if you can do the job please provide some samples and back end. CMS need to be realy easy for everybodye to work with. (even non professionals) if needed two bidders will be chosen. Chn p.s no joomla, wordpress, drupal etc etc.. check reference website