Grad School

I knew the day I graduated with my bachelors that I wasn't done with school.  Now I am seriously looking into Grad School.  When I first started thinking about Grad school I was going to wait until my third year of teaching and go get my administration degree to become a principal; now I'm not sure I want to do that.  I wanted to go to Law School  and still do but I'm not sure I could stay emotionally detached. What should I do? I want to hopefully be accepted into a Grad School by 2013 at the latest (August of 2012 would be perfect.)  I'm going to keep looking into different options and I will keep you updated on the process of getting to Grad school.