Great page, Bryan, and your directions are spot-on. I should also note that if you're staying at the end of Garmisch nearest the mountains, as I was, it's a 30-minute walk up to the Hammersbach Halt. Depending on schedules, you might get there faster than the train (I did).
"After the first glass, you see things as you wish they were. After the second, you see things as they are not. Finally, you see things as they really are, which is the most horrible thing in the world."
--Oscar Wilde on Absinthe