Hi,
there is no problem with the trains at Munich Airport because these trains are S-Bahn (Metro) and they depart every 15 or 20 Minutes. You donīt need a reservation and if you buy a ticket and miss your train - no problem, take the next one!
You will just have problems, if you need to catch a train at the downtown station (Hauptbahnhof).
If you have lots of time, you shouldnīt forget to visit Augsburg! If you take the train northbount (Stuttgart, Frankfurt), it is just 30 Minutes from Munich, next stop with the ICE-Train.
Augsburg was founded by the romans, 15 b.C., you can visit a Roman Museum, the Schaezler-Palais (Marie Antoinette stopped here on here way to Paris for her wedding), visit the Fuggerei (Worlds first social living project, founded 1514).
Augsburg was Birthplace of Bert Brecht, the writer and of Rudolph Diesel (Diesel Motor)
http://www.augsburg.de/Seiten/augsbu...gsburg_e.shtml
Donīt miss the visit! But I think, if you want to see all recommended cities, you have to move to Germany.... (sorry for my terrible english)
Wendy