Organize one room at a time - don't try to tackle everything at once. Just one completed room can be your retreat to normalcy. Your Oasis.
For us, it was the Family room.
Computer and componets, set up and ready - check.
TV and cable, mounted and ready - check.
Furniture in it's (permanent) place - check.
DVD's, organized and easy to find - check.
All the little things in their "place" - check.
Stuff on walls and "decor" added - check.
(Goodness, I guess it's obvious were our priorities lay... who needs a family meal? entertain me!)
At the end of the day, it was nice to have this one room where we could gather and - regardless of what stage of settled the rest of the rooms were in - we could, for the moment, just enjoy being home.