Jim's Market in the old railorad roundhouse is a real farmer's market. It is open only during the day on Friday and Saturday. You will find many Amish and Mennonite specialties. They have the best bratwurst (farmer's sausage) you can find!
The Butcher Shop is a great butcher shop and much more. In addition to phenomenally good meats they have excellent home-made Pennsylvania Dutch specialties. Try the chicken-corn soup, Montgomery pies, shanty beans, red beet eggs......