Looking for a room to rent for a mid 30s single professional

I'm a mid 30s single English teacher working full time and I'm looking for a double room to rent for approximately six months, preferably with a maximum of two other people.  I'm friendly, neat and tidy and have a good sense of humour.  It needs to be walking distance to the tube in either Turnpike Lane, Wood Green, Manor House, Finsbury Park or Seven Sisters.  My budget is up to 700 pounds or so.  Please let me know if you know of any suitable rooms available.  Thanks