So, I love a good filmmaker commentary track.*
I especially love a good commentary track when it features the editor.
(My wife begs to differ that anyone else actually listens to these things...)
To my delight, I stumbled across this site, thedirectorscommentary.tumbler, that not only has a huge collection of audio commentary tracks you can freely download, but 15 of them feature the film's editor too.
*Let me know if you find any good ones!
Obviously, listening to the commentary track without the visual is not the optimal way to enjoy an audio commentary track, so when you find one you like go out and buy the film on DVD or Blu-ray and enjoy it at its best.