Simple Links Categories page

I searched and found only one plugin related to links–enhanced links and it’s not really what I need. I want to display a page with link categories and then allow user to drill down and display all links within a category.

Searching the links is also requirement. I noticed when I use the WP search it cannot see my link names.

And I like to add the functionality to allow users to add comments and ratings for each link.

Before I start writing code I thought I would query the crowd to see if any such mod/plugin exists today? Thanks.