Hotels

Hotels

The Park View Inn (located right across the street from the reception) is not an option. It opens October 15. Sigh.
Hopefully you can stay with friends or family to cut down on costs, as most nice hotels are over $200 on the weekends in Chicago.

Options for inexpensive hotels
(all hotels listed are in the city)
Days Inn located in Lincoln Park -
It's located approximately one mile northwest from A New Leaf on Clark. Though I believe the only rooms available are with 1 double bed.
The Inn at Lincoln Park - right next to the Days Inn
Best Western Chicago
The Red Roof Inn
Howard Johnson

Other options --
Belden-Stratford - It's the closest to A New Leaf and does have weekend specials listed on their Web site, but space is limited.
The Ruby Room - close to the rehearsal dinner/drinks Friday night/the Sunday brunch and not too far from the wedding. This Bed & Breakfast has VERY limited space, and is something different than the typical hotel (2 night stay required).