I've been playing around and have coded up a basic tunnel broker system.
You can go to http://broker.ipv6.co.nz/
and score yourself a nice public /64, which runs through my broker and then through aarnet in aussie.
I'm also in the process of peering with a few NZ ipv6 sites including APE6/WIX6
Let me know if you break it, or find any problems