I've actually gotten three to agree by e-mail now. Unfortunately, I have never actually managed to get one to send a letter. One I met in person and I have some hope for (since that was just a week ago), but another hasn't responded to four e-mails over a period of a month and a half now. I just got another one to agree two days ago, but he said it would be " very short", obviously code for "bad". If he thought that would scare me off, he was terribly misinformed, and I e-mailed back to thank him effusively. I can only hope he has more commitment than the last one. Even if I get just the one (which I am not counting on), at least I can apply to NYU, Michigan and Georgetown.