Having run a few servers, bulletin boards and mail lists I salute you for your service Don! I've been on Yahoo a long time and had very few challenges if setup properly. I think we'll all settle in and do just fine.
Be nice to have easier archive, file sharing, member lists, and photo album features for sharing outings, projects, events and helping us see one another across the miles. I know many of the group by dits and dahs and will be fun to see a face now and then.
Orlando, FL (2 sons and families in Tulsa where we lived for 8 years)