As a 2L at a T3 school, I too worry about my job prospects. However, it should also be remembered that BigLaw has an incredibly high turnover rate, according to an article I read last month in www.slate.com, 80% of BigLaw new hires quit within five years. Plus, for what it's worth, I have a few buddies who graduate from top 20 schools, and half of them hated their big law jobs and quit within two years to work in government, solo practices, etc. The thing I try to remember is that when I graduate I will still be in my 20s, and when I just think about my Dad for example and how many different jobs he has had in his life so far, it makes me a lot less nervous. Regardless of how much money you are making when you first graduate, chances are you will only work at that job for 5 years max.
I wish I had $100 in loans. Amazing what a single "k" can do. I go to Suffolk - t3 in Boston.