Foo on Airborne. They've done this sort of thing regularly, with some rather expensive packages, and it's sheer luck that we've never had anything disappear.
However, the good news is that I officially have a job now. We'll be moving to New Mexico sometime in July. There appears to be a minimum four-week lead time on getting the movers to come pick up our stuff, so we'll have to jump on the arrangements this week, but that can be arranged.
The waiting is finally over. It's about time.