Graduate School

I've been toying with the idea since the summer of returning full time to school for the Fall 2010 semester. I'm about 99% decided on this now. I've just about finished applications for UNC, Duke and CofC. They all have applied mathematics programs which can lead to teaching at the college level or working for the government. Why would I want to teach at the college level? Well, I like teaching, but want more challenging material. Why would I want to work for the govt? Well, haha, that I dont know. But I do know I want to know more about mathematics and explore other options.