South West London is best IMO, many people would also agree. You are looking on about £750 minimum for 1 bed flat, more for a house or anything with a garage or own garden. Nice places near London where I lived are Putney, Richmond, Wimbledon, Then theres plenty of nice places in Surrey (much further from London Bridge though), Kingston, Surbiton, Epsom, Hampton. But then comuting to London is expensive and very time consuming.