OK, so here's a thing. If I want to run multiple offline blogs on my iBook which will never be published online, but still have basic blog functionality - like categories, permalinks, search - what software should I use? Can I set up MT or Wordpress locally like that without having to do weird shit to my iBook to make it work?

UPDATE: Thanks to Tom, I now have Wordpress installed locally and can make blogs to my highly systemised heart's content. It even plays nicely with Ecto. Oooh PKM heaven! (PKM == Personal Knowledge Management, to you normal people.)