If you are moving to London from outside the capital, no matter whether it is because of your new job requirements, or just because you need a change in your life, may be quite exciting but also problematic.
London is large and multi-faced city and you should not take your relocation here lightly. On top of everything, property and rent prices here right now are going through the roof, so your budget might, no matter how unpleasant this may sound, play a vital role in outlining the plan for your move. It all depends on the reason you are going to London though. You should try find an affordable place near your work and the school your kids are going to go. It should also be well connected via highways, train and Tube to other parts of London...