Bells is a great brewery and Oberon is a super popular selection at a number of Chicago watering holes in the summer. But due to some shady Illinois distriution laws no more Bells here for us. I can guarantee I'll be crossing the border into Beloit, Wisconsin next time I visit my family in Rockford, IL to pick up some Two Hearted and some Oberon this summer.
The Chicago Reader did a nice article on Bell's and the overall shady IL distribution laws a few months back. Good reading.