We will be in Graz two days early in September, our first trip to Austria. We can spend 10-12 more days in Austria. We would like to visit Vienna, the Wachau area and the Salzburg region, and can visit these before AND after Graz. How would it be best to plan the trip? Which cities would be best to fly into and out of? Also I've seen little discussion about driving in Austria. Being Houstonians, we are flat landers. Is driving in the mountains difficult? Is it best to take trains or a combination? I dislike backtracking, so if we visited Vienna before Graz, is it possible to drive north to Hallstaat from Graz. If we did this, would we miss much beautiful scenery in northern Austria?
Also are there any recommendations for accommodations in Graz? Any help would be appreciated.