I'm thinking of organizing a trip to Dachau for a Toytown Oktoberfest warm-up event. They have a medium size festival which is very similar to the real Oktoberfest in atmosphere. I was there 2 years ago and had a great time...from what I can remember.
For transportation, you can just take the SBahn (S2) for about 20mins. The festival is just a 5min walk from the Sbahn station in Dachau.
The best part about this festival is IMHO:
1 Maß Beer (1L) = 3.50€
Dachauer Volksfest
We should agree somehow on a date...So who's in for a night/afternooon of drinking?