Just about to put the Dynamat link on here as well, and I see that it's already done.
Ebay (Australia) has what seems to be some good deals on Dynamat..
http://shop.ebay.com.au/?_from=R40&_...All-Categories
I'm also about to get some for the new car...I'm thinking I might go for the BIG sheets of the stuff...seems you can get PLENTY for $400.
It's off to paint next week, so it's nearly time for the soundproofing to be done, prior to interior fitting.
Cheers,
Warren.