Many people who are moving to London this year will be moving to a pre-arranged job. This means that your employer will take care of the visa details for you and your family. If you are going to be living in London with your partner or spouse it might be wise to check with your employer about making sure that they will be able to work in London for the duration of your stay. There is nothing worse than moving to a foreign country and not being able to get out and meet new people, find a job or open a bank account.
If you are moving to London from a foreign country, then you can expect that there will be a period of adjustment. While people assume that if they are coming from an English language country the move will be easier, there are still some very big differences between living in London as a foreigner and a native Londoner.