Best North American Big Steam DVD?

[UP 4-12-2]

Hello folks--

As I'm buying more dvd's, and prefer the big articulateds, I'm wondering what you folks consider to be the best dvd's out there?

My nomination for the best big steam video or dvd of all time has to be:  Greg Scholl's "DM&IR Yellowstones: Giants of Steam".  With its live sound and fantastic footage, it captured my 1-year old son's interest in trains...well, for a few years.

Thanks for your responses.

John