Well, as i have no children (and don't plan any) i think my plan would be a combination of Lew's and Rick's (rsword) plans. I think Lew is right that the right university might treasure such a collection while the Met would only stick them in a draw in the back room.

There are also much smaller museums than the Met that might find interest, but i think my first choice would be to find a young and truly interested collector, one who would take at least as much time and considerstion in passing his collection on as i will about mine.
Either that or i will pile it all up with my body in a viking boat and set it adrift on fire!