ipv6 intarnet to an ipv4 internet

[immolo]

Hello, I'm currently configuring my server and was thinking of switching my lan to ipv6 but have decovered my ISP doesn't allow me to use it even though I do get an ipv6 ip so I was wondering could I switch my intranet to ipv6 and then somehow tunnel all internet requests to ipv4 on my server end so when the big day happens and we all switch I can just remove the tunnel and enjoy. I was also wondering how this setup might effect iptables,dhcp and bind.

Thanks for your time

Immolo