I've always loved the Classic Apple Garamond font used for the text "Macintosh". It's a shame that Apple is moving away from it. Nonetheless, a full version of the font can be found at:
/System -> Library -> CoreServices -> SetupAssistant.app [Show Package Contents] -> Contents -> Resources -> Setup Assistant.dfont
Simply place a copy of the font in the /Library/Fonts folder, and you'll have it available! I renamed the font to Apple Garamond, since that's the name that shows up in the font selector panel...
Mac OS X Hints
http://hints.macworld.com/article.php?story=20021007062613541