Use more than 1 blogroll in your site, divide in categories as well
Using a combination of plugins "Custom Field Widget" from Scott Allan Wallick and "Better Blogroll" from Jon Dyer
Use how manys blogroll do you want in your site, and put everything your place.
Just put the name of link category that you like to show, and then everything is ready.
Version 1.2 -- Corrected update. Now can edit (:D) Version 1.1 -- Corrected the order of links. Instead of "RAND()" will use the "name ASC"