My vote is for the Feliway diffuser also. I have 5 cats that I have moved house with and this really helps. Remember that the suggestions on having your kitty in one room to begin with and then gradually introducing them to the rest of the house (and keeping them inside for 2 weeks) is for their own safety and wellbeing.
Imagine being that little and transported to say...city central and trying to find your way around. Kitty may cry and try their best for you to give in but doing what has been suggested is for their own good. I find butter on the paws when they are let outside works well too as well as having a piece of my clothing like a jumper that I have worn in the same room with kitty's bed when you move.