[wp-hackers] Adding meta data to categories

[Dan Gayle]

One of the sites that I have been working uses custom fields  
extensively for things like <meta> tags, sidebar information, etc. The  
main issue that we are running into is that we want the same  
flexibility for category/search pages. So my main question is, What is  
the best way to add custom meta fields to non-posts/pages?

The categories page in the admin doesn't appear to have any hooks that  
we could latch onto to create extra inputs, and if we figure out that  
part, which database table would be the best table to add the info to?