Can you give a bit of background info on you as a student? Do you have experience in the ancient languages, and how much? Because you posted the link to IU's program I'm going to assume that you are aiming to apply to MA programs, and not PhD programs - am I correct? I just graduated with a BA in history (my university dissolved the classics program a few years ago) and will be starting a MA program in Classics in the fall. Indiana was originally on my list but I ended up not applying because they don't offer funding to their MA students in the history&ancient languages program. So this is something else you have to consider - are you willing to pay for your education? If you are, I also suggest applying to a few post-Bacc programs just to have options. If you aren't, you still have a decent list of schools to apply to that offer funding: University of Georgia, University of Arizona, Florida State, Notre Dame, Vanderbilt, Tulane, Kansas, Tufts - I'm sure there are others that I'm missing.
On the MA level you are going to be hard pressed to find something like a joint program in history and classics. Though Arizona and FSU offer different "tracks" for their MA students (literature, archaeology, history/civ, etc.), most MA programs seem to focus on the languages. This isn't a bad thing though - assuming that your goal is to study the ancient world in a historical way in a PhD program, whether in a history department, classics department, or some type of joint program, you still need plenty of experience with the languages and the MA (or post-bacc) can only help your chances.