Downtown Chicago

I've got some business coming up in downtown Chicago in a few weeks and I'll be staying there a few days. Since the Honorable Mayor Daly dashed my dreams of flying into Meigs, does anyone have any strong recommendations or warnings about airports in that area (must have an instrument approach)? I was hoping to find one that wasn't too far away from downtown for transportation purposes.

So far, it looks like it's going to be one of these three:

Lansing Municipal (IGQ)
Palwaukee Municipal (PWK)
Lewis University (LOT)

Thanks,

Keven
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E cigarette