12 days? That's really a long time. I'd really like you to find a sub for your trip, pausing the game that long really is the perfect way to have everyone loose intrest. (Or, if you don't have the time to find a temporary sub before you leave, I can look around for someone who'll take good care of your nation, but that would mean you can't instruct them about what to do.)
Other than that I wish you the wildest vacation imaginable.
In a related subject, I myself will be gone from around the 10th till the 18th. Calahan has already agreed to take over my playing duties for a couple of turns, but I'm looking for a volunteer to take care of the admin duties in case something comes up during my absence.