What is the rent like in that area. I am used to a 1-2hr commute so anything within 30 min will be a blessing. Also you may not be able to help with this question, but what is the job market like in the medical industry in Tulsa? My wife will be looking for a job next december.
One of the many great things about Tulsa is that you don't have to deal with a commute like that. Compared to the major cities, traffic is a breeze and if you drive 30 minutes you can be in the country surrounded by cows.
As far as rentals, have you checked into the apartments that Tulsa has on campus? They look like they would be really nice and then you'd be right there by classes, the gym, the library, etc. They don't allow animals so that might be a limitation for you. I live in a nice suburb of Tulsa and my commute to the school is about 20 minutes. You can be just about anywhere you want in Tulsa and be a quick drive to the school. If I didn't have kids and was just moving to the area (and had rejected the on-campus apartments) I would try to find a rental near the school in one of the cute little gingerbread cottage looking houses. There are a bunch of those in the mid-town area where the college is located.
What does your wife do in the medical industry? If she is a nurse she will have no trouble at all finding a job. I have several friends who are nurses and the demand for nurses is very high in Tulsa. St. John's and Hillcrest are both just a couple of miles from the school but St. Francis is the largest hospital in Tulsa and its about 8 miles from the campus I would guesstimate. Like I said, nothing is very far when you're used to an hour or two commute as you said you've been doing. Hope this info. helps.