Find plugin or build the category structur

I need a plugin to structure some of my categories, or to build it in some way. See the picture showing how I would like it to look like.
The categorylinks should show the number of posts in the categories on the toplevels, however on the last level it should list the titles (having a link to the post) alphabetically.

I will use it on the same website on different pages concerning different subjects.

Hope you can help me

Thanks