MindManager Mac has a good set of easy to use mind mapping features while deviating slightly from the traditional idea of a 'mind map'. It sets it's self apart from the other Mac mind mapping tools by aiming more towards a professional output style (something you might show in a formal meeting or presentation).

A year or so ago I needed something to help deal with a set of projects that were suddenly stepping up in complexity - I already had large amounts of working notes, documents, outlines, reference material, contacts, dates, images, etc. and needed a way to glue them together into usable project views that could be quickly edited and navigated.

The first release did have a few glitches and a couple of missing features, but it worked well for me. As the price felt a little steep I tested out the other Mac mind mapping alternatives before purchasing, but came back to MindJet.

Version 7 releases have been glitch free for me, and added an outline view and custom rule filtering - great for reducing a complex map down to just the actions you need to focus on right now.