Pick up a copy of an Arrival Magazine; it contains lots of ideas and info.
Collect your hire car and check into your accommodation.
Contact your friends back home to let them know that you are safe.
Make contact with your resettlement agency or any other people who will be of help to you in the first few days.
To keep your jetlag to a minimum, try not to sleep during the day.
Set up a pay-as-you-go mobile to start you off - you can buy a cheap SIM card and use it in your UK phone.
Contact your new employer.
Find your nearest internet cafe for property and area research.
Take a few days to get over the journey and explore the area.