If you keep this up I'd say you have an excellent shot at getting into a good post bac. If you are still in school why not do the pre-reqs at the school you are in now? Formal post-bacs are pretty expensive, but if you're pressed on time and need to absolutely finish by Winter '16 then I guess it makes sense. However, if you could postpone your graduation by a bit and do the pre-reqs at the school you are at that might be good. Do the route that saves you the most money.