MindArchitect is an easy-to-use mind-map editor. Supports hyperlinks, tables, embedded images, anchor lines, predefined style sets, custom styles, and more. It's free to be used for small and mid-sized mind maps, but needs to be purchased if you are using it for very big mappings.
Version 1.0.1: Release notes were unavailable when this listing was updated.
OS X 10.4 or later