catagory manipulation

I’m wondering how I can add a couple catagory links to another section in my sidebar other than the catagory section. I have an “authors” section at the top of my sidebar. I want two catagory links in there. so they go to the posts of the two authors. know what I mean? I think I need to copy some php from the sidebar template, but I’m not sure which one. I sitll want to keep the catagory section, but just add a couple other catagory links elsewhere on the sidebar. thanks a bunch.