Redesign a portal template and create 9 more schemes based on that template

I have an existing portal using a CMS done in ASP.NET and SQL database. It uses tree main templates for the whole portal, [login to view URL], [login to view URL] and Colors.CSS. I need those templates to be redesign too look more modern and appealing, then, I need 9 more templates based on that first template. The 9 additional templates will be just slightly modified, like a band color, or tabs colors, etc. They will be used to show that you moved from one section to another but are still in the same website. All templates will be fully compatible with EE and Firefox. ## Deliverables I have some ideas of the new design? but will be open to suggestions. It needs to be clean and modern, not crazy.