Just got my copy of Mac OS X Hacks tonight.
Of particular interest is an article about installing Debian GNU/Linux on an iBook, which in turn pointed me to another resource on the same topic. Have a look at http://people.debian.org/~branden/ibook.html if this interests you.
If I only had an iBook, I would love to give it a whirl ;-)
BTW, How is a girl supposed to know you are linking her? And why? LOL, I am kind of boring...