RE: Need help regarding frozen breastmilk
I've been looking into this, as I have a very similar problem. (At any rate, a move across much of the country, and a freezer full of milk!)
What we've come up with is to ship some of the milk, probably on dry ice, to someone ahead of our trip. (We're moving closer to family, so we'll overnight it to an understanding family member or friend...) Not a lot, just enough to have a day's worth for when DS starts daycare again plus a small stash.
The rest, I've looked into donating. I haven't gotten too far yet, but I got info on one bank from my lactation consultant: http://www.health1.org/milkbank.asp (I guess some states run programs, but AZ is not one of them.) This link is for the Denver Milk Bank, apparently the largest!
I have way more than is worth shipping ... I'm generally producing 18-21oz/day, and DS usually takes less than 12/day by bottle (his record is 14).
I do have the benefit of flying when DS and I head out. (DH will be driving.) My FIL flys a LOT, and got us tickets with his miles. (Possiby even nicer, he's going to drive up with DH and the furbabies!)
Good luck!
mommy to three boys: A, 3/04
and identical twins B and D, arrived 9/08