I finally got around to getting everything working. I have a /64 from Hurricane Electric through their IPv6 tunnel broker service to my Cisco 871 router. From their I have my router configured with my prefix for my local subnet and I have a Windows XP SP2 machine on that local subnet. I started up IPv6 on my XP machine and get an IPv6 address and I can pass traffic to the IPv6 public Internet! It all works, very cool. When I get a moment I will do a dump of some configuration files and XP screen shots to show how it is configured.