That article is heartbreaking... this is a really good discussion though.
I consider my collection to be fairly small potatoes .... at least in terms of what would happen in a disaster I think there are other more valuable items I'd be more concerned about.
My car is heavily modified and I have special insurance on it to reflect those modifications, obviously my premium is higher as a result...
---------------
I know most of you aren't in the US but a quick Google search turned this up:
http://www.collectinsure.com/