I just completed the application for NYU's tax program. I'm currently working in tax now and I'm hoping to get into NYU, which is clearly the best program in the nation for tax. I went to a lawschool ranked around 60 and did fairly well (just outside the top 10%) and served as a law review editor. I've heard that its still very competitive to get into and by no means am I banking on getting accepted. I've heard the program is extremely difficult so you should be absolutely certain that you want to spend your career as a tax attorney. Take an advance tax course (like corporate, partnership, etc.) before you make this decision. Perhaps find out what its like to actually work in tax - its a lot more complex than most areas of the law. I hope to land a job in biglaw in international taxation upon graduation. Good luck.