K.S.
you could also join NPN--it's an online community with mainly a local membership
http://www.npnparents.org/templtxt.asp?navbarref=membersh...
I found a short-term nanny on the site, and there are a lot of discussion groups that you can look at. It does have an annual fee, but I think $45 isn't too bad considering what all you can get out of it.
Welcome to Chicago :)