Hey Lise
I just went LBS hunting the other day in Oak Park. I did go by Licktons, and their selection is rather small. They seem to be more of a components/parts type shop. It's very bare bones in there. They did have some bikes, but again not many. The guy referred me over to another place on North Ave, a few blocks west of Oak Park Ave. They definitely had more bikes, including some old skool looking things.
Barnard's Schwinn
http://www.barnardsschwinn.com/
I haven't been here but found it on yahoo yellow pages:
Oak Park Cyclery
1113 Chicago Ave, Oak Park, IL 60302 (almost into River Forest)
Phone: (708) 524-2453
They don't appear to have a website (how low tech).
Then there's Dan's bike shop, which I haven't been in, in Berwyn on Roosevelt:
http://dansbikeshop.us/
If you have time to buy your gift certificate, I can swing by OPC and Dan's in the next few days and scope them out if you'd like.
"Only the meek get pinched, the bold survive"