Northwestern's 2005 schedule is apparently still a mystery. Well, at least a large portion of their non-conference games are up in the air. Here is the link to the official website's schedule. There are dates, times and locations, but about seven games against TBA opponents. That makes it a bit difficult to evaluate their non-conference schedule.
In the Big Ten, the Wildcats do have to visit Minnesota, Purdue, Indiana and Illinois, but the Spartans, Hawkeyes, Nittany Lions and Buckeyes will travel to Evanston.