Let me throw in a couple of my favorite sausage shops.
Zoran Lalich makes some wonderful Serbian smoked sausages and bacon.
http://lthforum.com/bb/viewtopic.php?t=5732
Lalich Delicatessens
4208 W Lawrence Ave
Chicago, IL 60630
(773) 545-3642
Lalich Delicatessens
8133 N Milwaukee Ave
Niles, IL 60714
(847) 581-1120
The Danjanovic family of Sandy's Bakery and Deli makes great Cevapi and Serbian Kobasice. On weekends the deli features roast Pork and Lamb. They also own a very nice restaurant where you can get the Serbian equivalent of a Charcuterie plate (sort of) called "mešano meso"
http://lthforum.com/bb/viewtopic.php?t=15494
Sandy's Bakery & Deli
5857 W Lawrence Ave
Chicago, IL 60630
(773) 794-1129
Sandy's Restaurant
7021 W Higgins Ave
Chicago, IL 60656
(773) 467-4700
The Beograd Meat Market & Restaurant also does a nice mešano meso, and makes their own sausages.
http://lthforum.com/bb/viewtopic.php?t=16010
Beograd Meat Market
2937 W Irving Park Rd
Chicago, IL 60618
(773) 478-7575
One of my favorite small commercial sausage makers in Chicago is Harzcak Sausage. They make a smoked spicy Serbian sausage that is hot and delectable, as well as great Polish specialties like Kielbasa and Krakowska. The double-smoked butt is the smokiest pork I have ever tasted (but it is tough like jerky from all that smoking). It is great chopped up in eggs or potatoes. Harczak also sells packaged smoked pork ribs.
Harczak has a small outlet store, but their products are available at many ethnic markets like City Fresh Market which carries a wide range of Eastern European specialties by various local makers. As I noted in another post, City Fresh carries a tasty Slovonian dried salami called Kulen made by Max's Meat, which is full of hot paprika and loads of garlic.
Harczak Sausages
7035 W Higgins Ave
Chicago, IL 60656
(773) 631-8400
www.harczaksausage.com
City Fresh Market
3201 W Devon Ave
Chicago, IL 60659
(773) 681-8600
I have found that Russian delis also have a well developed appreciation for sausage and salami. A real Russian deli will use a different angle and thickness for slicing each type of sausage. My favorites are a black dry cured salami made with cognac and the fatty but tangy (as in lactic) dry cured tsarskaya, which is sliced paper thin. The best Russian deli counter I have found is in the Farmer's Best Market in Niles. The nearby Greenwood Market also brings in a lot of hard-to-find Russian and Georgian type sausages and smoked meats from the east coast.
Farmers Best Produce
8526 W Golf Rd
Niles, IL 60714
(847) 965-0260
Greenwood Market
8716 W Golf Rd
Niles, IL 60714
(847) 803-0013
I also have to mention the grand destination for encased meats, Ream's Elburn Market. It is 45 miles from Chicago, but worth the trip. They make dozens of types of sausages from Cajun Boudin to Hungarian Hurska. Call ahead to see if they have your favorite. The Metra Union Pacific west train (AKA CNW) now goes to Elburn.
Ream's Elburn Market
128 North Main Street
Elburn, Illinois 60119
(630) 365-6461
http://elburnmarket.com/
http://metrarail.com/Sched/cnw_w/cnw_w.shtml
Oh yeah. I almost forgot one of my sentimental favorites, Romanian Kosher Sausage Company. Of course, they make all-beef sausages and meats. Some of my favorites are the addictive "beer sticks", medium-hard salami and the kishke, but what the Romanian is best known for is hotdogs. The Polish style garlic hotdogs are my favorite, but the regular hotdogs ain't so shabby either. The dogs come in a variety of sizes. Their products are available frozen if you want to ship some home.
http://lthforum.com/bb/viewtopic.php?t=12987
Romanian Kosher Sausage Company
7200 N Clark St
Chicago, IL 60626
(773) 761-4141