The server upgrade this week went very well. There have been a few little hiccups, but overall it went well, and the site is blisteringly fast now.
There are still a few missing features. Most noticable, the gallery is gone. The gallery solution I was using isn't mature enough to run in this version of Drupal. I'll either reenable that gallery software when it gets stable or find a new gallery.
There also were a few other things I was hoping to add that I did not. One thing has has been mentioned is a private messaging system, so that site users could send each other their email addresses and discussing things privately. Again, the PM module isn't mature enough right now, but I will try to add that in soon. Now that we are on Drupal 6, we have a lot more new modules available to us.
One module that is mature is the book module, so I think we'll try to kick off a "Baker's Handbook" project very soon, like by the start of December. It has been... a year since we first talked about doing that? Maybe more? Anyway, it is definitely time. Worst case, it doesn't work out. Nothing ventured, nothing gained.