Are you going to insert different paper into the printer...? If its going to a printer exoprt to PDF and tell him what you want. Or print to the biggest size paper centred, and trim after.
Unfortunately you can't assign different print settings for different master pages. It's an interesting idea. You can post requests to Adobe on their Wishlist site.
@Grant-the printer had multiple sizes in it..right now that is what we are doing printing to the larger size. Just wanted to make sure I wasn't missing anything.
@Eugene-That is what I hope to see one day...I'll send Adobe a little nudge..thanks for the link. Ideally, since you can make different size master pages, it would be great to add a print option to that page, so any page assigned to it, would use that setup.. I Like it ;-)