I've been getting an early start today, and you are getting a very, very early blog, because of this:
I've started the server migration, and I'm already really, really happy that I did test-runs of almost everything before, and took copious notes. This way, my panic probability is much reduced, even if something does not go quite as planned.
Like my database fooling me into thinking it had not imported, thus trying to re-import... and getting an error message. Obviously.
If you're interested in following the shenanigans in detail, I'll be tweeting live about this - you find me on twitter as katrinkania, and I'm using the hashtag #newserverorbust.