If you want to make money so that you can save up a nice nest egg rather than be broke at the end of every month, London is probably the worst place to move to, unless you are working in the City or some other very high paid job, or you are lucky to have a permanent line of credit from the Bank of Mum and Dad. And not only will you be broke, you'll be living in a damp hovel shared with strangers. Kind of like being a student, but with all the responsibilities of having a job.