The Ideal Way To Spend Your Vacation What Is The Ideal Way To Visit Salzburg?

What is the ideal way to visit Salzburg? - the ideal way to spend your vacation

My wife and I will be in Munich on 12/7/2008 and stayed at the Meridien Hotel near the train station that R is planning to visit Salzburg Sunday, 13.7.2008 return the same day, What is the fastest and cost-efficient way to get from Munich to Salzburg and back on the same day