Let us know how you get on. Check out what school books etc are available to your children at the school. And whetever they are missing, maybe you can take for your children. A few maths books etc and Oxford reading books. I actually asked our school in the UK if they had a full set of old ones that they did not need and I took these with me. Thats the main concern, teh paying for schooling for the next few years. In teh UK we only pay once thye hit A'levels/College or Uni, so paying from a young age can soon add up to the cost of living.
Its great you have a job lined up. Let us know how you get on.