"He who marches out of step hears another drum." ~ Ken Kesey
Goes to show there are more than a few ways to skin a cat (ewww) or create spot seps from PS. Personally I would do that in channels by creating "new spot channel" for each color. I always output channels anyway sooo....I remember that tut from a couple years ago too.
I am wondering if I should even mention this as it would seem negative toward this guy. It's not intended to be. O'm a bit jelous that people can even make vids. I try and FAIL.