@ossobuco,
Arrgh, I typed up a long post and it logged me out.
Anyhoo, I'm in Dublin airport for a few more minutes. Reality hit me, as CJ predicted it would, on the plane. 40 minutes to landing (there's a ballad in there). That's where the realization of the hugeness of this step was first fully felt. It was rationally realized, but the feeling part was postponed until it couldn't be postponed any longer. Bitch slapped by reality I was.
Sure it's exciting, but don't even try to tell me that right now. Come back in a few days. I shall endulge in some therapeutic mourning, I think I'm entitled.