connecting airport base stations


Is there a way to connect airport base stations together to extend their range? I have a new AirPort Extreme base station in my home office which I use to connect to the internet and to print wirelessly to the printer in the office. My wife has a lap top in the den which is at the opposite end of the house which she would like to connect to the internet and to wireless print to a printer located in the den. The range seems to be too far for the one office base station to handle both locations. I was hoping I could set up my older base station in the den to extend the range of the office station.