The power of Final Cut Pro X is in using Keywords. With Keywords you can organise terabytes of stuff and find everything quick and easy. But with FCPXTRA making Keywords becomes real magic... Check fcpxtra.com for more info on that.
You can dictate, write and annotate everything you like with the click of a button.
Outline your interviews using your own voice with OSX Dictation.
Fill the 'Notes' section of Keywords, so you can order everything systematically and add as much metadata as you want.
Add symbols and colors to your keywords to recognise them easily in your Library.
Make sure you can store and find every possible word you can imagine and search for it, not only in the Library but also in your timeline.
More information you will find on janwillemdenbok.nl/home/fcpxtra-homepage/