I think we are safe when it comes to competition from Inter for any Dutch NT player ... till MvB is NT coach, he knows how to advice his players
... not to mention that these guys must be on crack to prefer Inter over Milan, with a fresh example named Andy van der Mayde.
Also, Ajax has always been a club that goes for the money - transfers has always been one of their major sources of cash to keep the club running - and they have a rich array of young, talanted and cheap players to choose from in Holland.
Not to forget that Stam moved to Ajax from Milan for free basically, which would give us a boost in a possible competition with Inter, or any other club, for Ajax players.
My point is, if we really want Huntelaar or Sneijder, we'll get them.