J.B.
First thing you need to do is join a local mommy group! I have one based in Warrenville, but we do a lot of stuff in Naperville. We have SAHM playdates and events, as well as stuff in the evenings and weekends for the moms and the whole family. Here's our group website:
http://workwmn.meetup.com/300/
If nothing else, maybe you'll enjoy having daytime playdates at Kelley's house (she organizes our SAHM) events. Hope to meet you soon!