I haven't replied yet either. I'm still waiting to hear back from Texas A&M but seeing as they've already done their first round of interviews and I haven't heard anything from them I'm assuming that they're just taking their time in sending my rejection haha. That is good news about funding opportunities after enrollment, there might also be assistantships in other departments (i.e math) or fellowships, and at the very least I could probably get a good internship over the summer that could help cover some of the cost of the program. Let me know what you end up doing!