M.C.
We use to live in the area of Chicago about 4 years ago. Our OB is no longer there so no help with that I can say though that we lived in Carol Stream and loved it! Wheaton is also nice but is similar to Bellevue very pricey! But Bloomingdale, Glen Elllyn, Medinah, glendale heights... are all great places to live. A little bit of a commute but I don't think it is as bad as say living out here and commuting from Lynnwood or Everett to seattle.
If they don't want to deal with the tolls then best bet is to live in the city! We lived there for 3 years and never drove on the freeway unless it was an area between tolls.
We delivered at Elmhurst Medical Center and it was o.k. Didn't like the nurses!
Friend delivered at Central DuPage and they have a new; as of 4 years ago, maternity center which was great!
Loyola University is also a great place we were referred to there for some treatment because of high risk!
Definitely don't have her deliver at Glenoaks hospital I had to get blood work done there and will never ever, ever go back!
Anyway as you can see I am only really familiar with the West side of Chicago but I do have to say we loved living there!