Get a real blogroll

Though I feel I have no time to learn anything new at the moment, I’ve build up a strong desire to learn more about OPML and start really organizing my links in a more iterative, interactive way. is like crack. It’s so easy to get started and it takes so much of the pain out of adding a link, but it’s a dead end.
Seems like step one would be to import my bookmarks (and all my older bookmark sets), currently in the form of IE Mac “favorites.” Is there some easy way to do that?