Late Bloomer

I've started thinking about going to Grad school. I'm in the preliminary stages of researching schools and gathering information about entrance exams and admissions. The process takes considerable time and with a trip to Africa in the midst I need to get started now to begin the Fall session 2009. I want to be working in Public Policy and realize that in most instances a Master's degree is required - not to mention compensation is commensurate with qualifications. I've got my sights set on Berkeley but it is extremely competitive so 2nd and 3rd choices (maybe more) are a must. I prefer to stay on the west coast but my interest in International Policy will dictate where I apply. Wish me luck.