I will say this:
I'll agree with the above poster in the sense that it probably would be very useful to learn some basic vocabulary, especially procedural, for when you start reading cases. Things like summary judgment, writ of certiorari, assignments of error, petitioner, respondent, default judgment, etc. It will be a lot less confusing when you start reading cases the first week. If I remember, even keeping appellees and appellants straight took a little while at first. A little research on the appellate structure of the state and federal court systems would probably be helpful too.