I have worked out at 24 hour at trinity mills for almost 8 years now, I have always liked working out there, but I guess I am biased. They are actually building a new Liftime fitness across the street, and I went and talked to them, and they seem like they are willing to match rates just to get people to come over there from 24 hr. Lifetime is bad ass too. You might check it out, they have just started building it, but said it will be done in a few months.
I dont know if that will do you any good since you are going back to school in a few months.