Penguin

FreeNet6 will give you a /48 block of real world IPv6 addresses, using TSP (the Tunnel Setup Protocol.)

See http://www.freenet6.net/howtsp.shtml and get your addresses by signing up at http://www.freenet6.net/how48.shtml

Freenet6 is better than 6to4 because
The IP addresses are static.
6to4 is better than Freenet6 because
The pings are much lower - you dont have to go through a tunnel to New York to get to anywhere on the IPv6 network.