It's certainly hard to turn down a good funding offer. Good luck in waiting to hear from the rest of your schools. Hopefully we'll get the rest of the news in the next week or two!
Congrats JJH, I also just got accepted to Minnesota. I noticed that you were also accepted to OSU and Wisconsin for American politics (as was I). Do you have any preferences at this point? I'm still waiting to hear from WUSTL, although I am skeptical about my chances there since I didn't get into Yale. I am not sure that I will visit Minnesota, and am probably learning toward Wisconsin at this point.
Has anyone heard from WUSTL, MIT or Minnesota? I have heard that WUSTL has made some decisions, but it doesn't look like many people have posted results from them.