To IPv6 or not
The question really is not if you will use IPv6, but when. You probably already do and just don't know it. If you don't live off the grid and you do purchase gas, electric and water services, no doubt you home has an IPv6 or two assigned to some of the devices on your property, such as your gas, electric, and water meters. Why? Well it sure makes addressing hundreds of thousands, if not millions, of devices that much easier for utilities and municipalities.
How can IPv6 benefit you directly? Imagine being able to access any of your PCs, printers, TVs, cars, phones, Wiis and anything you can network, from anywhere at any time? All without having to poke holes in firewalls and without having to deal with the complications of Network Address Translation (NAT) and having to map public IP addresses to private IPs, because everything has a public IP and your networking devices all have encryption built in, thanks to IPv6's native support for IPSEC.
What you should consider is that even if you don't feel you've a need for IPv6 on your network, it's probably already there, just waiting for someone to use it. Windows Vista, Mac OS X, and Linux all have it built-in, and on by default. Hackers know this and they take advantage that most firewalls nor even IT staff know how to handle IPv6 traffic.
You can read more about IPv6 on the Wikipedia IPv6 page.
Should you want to take the step to get connected to the IPv6 internet, I have experience in both deployment and security of IPv6. I've managed ISP connections that both natively and via tunnelled interfaces to IPv6 Tunnel Brokers, with static routes or BGP. If you just want to make sure your network is secure from anyone using IPv6 to break or sneak into your network, I can review your security policies and infrastructure and help you refresh and update it to account for IPv6.
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