I've often wanted to setup IPv6 at home and for Argo, but I was intimidated by setting up tunnels and such since none of my providers (Comcast or CTI|Networks) has direct IPv6 support yet.

Now someone has gone and made a nice and easy how-they-did-it guide:

http://berrange.com/personal/diary/2007/08/how-i-learned-to-stop-worryin...

I might be getting some IPv6 love in the next month or so..