You ought to be able to get the Hyatt Place on Caravan Court at just under $100 a night in early September but taxes will take you a little over $100. The hotel features a continental breakfast, heated pool, fitness center, wireless internet, etc.
The Holiday Inn that's next door to the Hyatt should cost a little bit less but would end up at about $100/night with taxes included. I'm not sure if breakfast is included but they have a restaurant, pool, fitness center and a great location across the road from Universal. I think that this hotel is undergoing renovations but I don't know how disruptive that work might be.
In the $75-$85/night (before tax) range in the area are a Wingate by Wyndham, a Hampton Inn, a Fairfield Inn - all with complimentary breakfasts. Those are generally business-person type hotels that are nice basic hotels that are pretty consistent in all their locations.
Dick Taylor