I have created an iCal calendar of the Bears fixtures for 2009, if you have a modern Mac and thus iCal you can import this right in. You can also import it into a Google Calendar, i bet Yahoo and other calendar providers will do the same.
How to use this calendar file
Download the calendar file(s) and then you can import them into a variety of calendar programs and devices. The following are examples that i have tried, i'm sure you can use it in a similar way in other devices.
iCal - File > Import
Outlook - File > Import/export > Import icalendar or vcalendar file
iPod - connect your iPod, in iTunes select contacts and then sync iCal calendars
Google Calendar - Other calendars > Add > Import Calendar