Deploying IPv6 XLAT64

[Matt Hoppes <mattlists () rivervalleyinternet net>]

Looking at getting into IPv6 here ourselves... one of the big hold ups 
has been the dual stacking.

Can anyone recommend a quality, not ridiculously convoluted to setup, 
XLAT64 translator that we could run in our network to take the IPv6 to 
an IPv4 address when the remote server doesn't have 6 capability?