Jason, please sticky so we can make it a bit easier for people to find a place that has disc golf equipment. If anyone knows of more than this, feel free to add it and Jason can edit and compile. MC Sports has nothing but starter packs now, so I didn't add them to the list.
Highland Liquor Store (Gary Lewis)
1619 East Cass Street
Joliet, IL 60432-2774
(815) 727-4066
Aces and Chains Disc Golf
1706 W. Jefferson St
Joliet, IL
(815) 207-8874
K's Liquor (Gary Lewis)
714 Cottage St.
Shorewood, IL 60404
(815) 744-5570
Village Mart
1306 North Cedar Road
New Lenox, IL 60451-1160
(815) 485-4140
Wysiwyg Disc Golf (Out of Business as of December 2013)
24600 South US Highway 52, Suite C
Manhattan, IL 60442
(815) 680-5818