Figure out what tier law school you want to go to. Ivy league level schools are in the 170+ range. Top 50 schools are usually 165+. However so many people are applying to law school now, that in order to get a shot at any decent law school you probably do have to be in the 160+ range. You should check out princetonreview.com, they have some more information about law school, and the gpa and lsat ranges for most US law schools.