I need a CMS that can do the following (registration related)

Here is basically what I need the registration to do:

- Allow anyone to easily register on the website using a name/password/email (simple enough?)
- Allow registered users to 'sign up' to particular categories and specific users (selected by the admin) to manage those categories.


Here is a working example:

1) I am the admin for the entire list (able to add, delete, recover passwords, etc) blah blah...
2) larry1, larry2, larry3 register for the website. After registration they join "Category: John", here they can, for example, leave a message like "I like John's category because..."

3) John is a 'premium user' in charge of managing "Category: John" - Although he is unable to delete users or see the total # of registered users on the site, he is the only one who can 'read' the messages left in "Category: John"

4) 10 days later, a new category called "Category: Bob" is created
5) craig1, craig2, craig3 register for the website....larry1 (who joined 10 days earlier) is allowed log in and enter "Category: Bob", larry1 is now in 2 categories


So any ideas on which CMS (and related plug-ins) can handle this? I really hope this made sense to someone...

 

Joomla would be the best CMS you could go for. + subscription manager

 

Drupal's excellent built in user permissions would make it the clear choice for your site, in my opinion.

 

hmm, any other suggestions?

 

you should better build this cms from scratch.

 

Can no current CMS handle this?

 

you can probably modify the script using any CMS.

 

You can choose a CMS with the company which provides customization service. In this way you will get a CMS + the customization for categories which you need.
It will cost you less than developing a script from the scratch.

 

A lot of small companies and freelance developers customize Joomla. They can do virtually anything based on its platform. It shouldn't cost you more then 1000.