I will be in Mexico City from the 15/12-28/12. However, I want to organise a tour of the Colonial Heartland which includes areas such as Queretaro and San Migule Allende, etc. And also have a short stop in Taxco & Acapulco. I have been laboriously trying to contact travel agents (such as Andale Mexico) on-line regarding my requests but no success with responses. Can anybody suggest a good agent/ tour operator which may specialise in these areas. I would prefer to book before I leave; however, time is running out. Can anybody suggest a good travel agent in Mexico City should I have to do this once there?