Joomla Template

I have a Joomla Template which is plain simple normal Joomla template and I want to add 4 features to it. 1. Ability to choose various Template Options on a per Menu ID basis. For example, I have Link 1, link 2 and Link 3. I want the sidebar on on Link 1 and don't want it on Link 2 and Link 3. Or I want the header color to be blue on Link 1 and red on Link 2 and green on Link 3. Or I have 3 template layouts and I want layout 1 for Link 1 and Layout 2 for Link 2 and Layout 3 for Link 3 2. A user experience control panel in the front end from where a user can choose some features for the template like.... background color or the the links color or template style and so on. 3. A nice looking back-end template options panel. 4. Apart from Joomla 1.5, the template needs to be converted to Joomla 1.6 also. Any more enhancements to this from your end are most welcome.