Imported 4000 articles... how do I create authors?

Hi there,

I am trying to move Free Software Magazine to OpenPublish.
I am getting there (although, unfortunately I went a little crazy with customising things, and I am paying for that now... err...).

I imported all of the nodes. Now, I am dealing with "authors". I understand that in OpenPublish each "Author" is a different node. However, I am now in a situation where I have 4000 or so articles, each one authored by the node's uid. I also have a list of "privileged" uids with the right role ("authors"), who can create articles.

What's the easiest way to 1) Create those nodes (I assume one for each user with the right role) 2) Assign them to the article with the right uid.

I would assume this is something rather common... any hints?

Merc.