Not sure about the capsule bit on the graco, but i did ring around as i had difficulty in finding the tandem graco and most of the baby stores told me it is not here as not to Australian standards.

Toys r us actually had it in stock and that was the only place in Cairns that had one.

lOOK AT THIS SITE: http://strollersandprams.com/

I have found this to be very handy thats for sure. It is all a matter of researching on the net and then trying to find one in Aust to look at thats what i have been doing.

I will keep you posted if i find anything.