Nice video, I've also been a Mac user/gamer throughout most of my life and as such, Bungies Marathon games have always had a disproportionately large influence on me, even up to this date.
As a matter of fact, I'm currently still involved in the development of several 3rd party total conversions linked to the original games. One of them aims to recreate the Halo experience using the Marathon engine and the other one is supposed to serve as a prequel to Marathon Rubicon, the unofficial continuation of the original trilogy - and also the best Marathon themed game out there imho.
However, even though I've accumulated a rather large collection of Classic Macintosh computers over the years, I've never owned a Pippin before. Your videos might make me to reconsider that descision tho.
Keep it up.