I don't have access to my german books or magazines until xmas, but I would say that swiss coins are boring, as most of the designs have remained almost the same for 150 years, yet they added one star in the 1980s, so count the stars and look out for the reversing of the the reverse, it is now american in style, upsidedown.
Austrian coins are very cheap, I am not sure why, you cna get very old coins for €1 or €2, but collectable, and they don't have mintmarks which bring up the prices of the german coins.
Bascially the german and austrian coins you have are worth €1 or less there.
Some german coins are worth a lot, a 2 mark coin from the early 1950s, a 50 pfennig with reichspfennig from about 1926-27 is like €1000 or something. The regional coins are worth quite a bit as they were produced in very small numbers in many cases.