Bobak's finally opened its store in Naperville (in mall on 75th St, just east of Rickert Drive - same place as Secy of State License office). Selection of meats is outstanding, prices are very reasonable. E.g., roast beef sliced at deli counter was less than $4/pound. But why eat only the mundane? Try some of their other deli choices: veal stuffed with ham, smoked chicken breast with parsley, German roll - all less than $5/lb. From a Chowhound post long ago, I remembered a recommendation to try Bobak's Hunter Bacon, which is available whole or will be sliced for you at the deli counter (4.39/lb.). Bought some sliced and had it for breakfast - outstanding! Full supermarket offerings, but with emphasis on Polish and other international fare. Lots of good fresh produce at good prices.
There is also a restaurant on the north side of the store which offers buffet at lunch and dinner ($10.95 pp at dinner). Didn't eat there, but walked past the buffet table and there was a great variety of meats, vegetables, etc., including duck.