If you are in the Pittsburgh PA area, Penn Brewery has a pretty good Oktoberfest. The beer is great and the festivities are always a blast.
I hear Church Brew Works has a decent one too, but I haven't been to that one yet.
Fermenting - Deception Cream Stout, Raspberry Apfelwein, Bee Cave Brewery Haus Pale Ale
Keg - Apfelwein
Recently Departed - Hazelnut Brown Ale, Pumpkin Wheat,