Although I am probably 25 years older than you, believe it or not, I am at the same exact place. I'm prepping for the June LSAT and law school admission in the 2012 cycle.
It sounds as if you have yet to find LSDAS. You should at least register with their site now, as you will have to end up signing up the LSAT and use the Credential Assembly Service (CAS). This is true because most schools work their admissions process via LSDAS/CAS. They charge one fee to take the LSAT and one for the CAS. You don't have to pay for these just to register with them.
Another benefit to this is that they have links to just about ALL ABA accredited schools, from Yale to "Tier 4 Town Law" They also have a feature where you can plug in your GPA and LSAT numbers and you will see your basic (without soft factors, etc) admission profile for each school.
You can build a "My Schools" list as well.
Each school listed has a basic profile (think of the school's "marketing blurb), and the ABA profile. Reading these can give some idea of schools you may be interested in.
These are just some basics. My own state (Florida) has a law school that has a VERY strong program in Environmental Law (Florida State Law).
I believe US News also highlights schools that are strong in particular areas, i.e., Environmental, Advocacy, etc.
I think if you make your 170 plus LSAT and maintain your current GPA at Penn State, you'll do well in the admissions cycle.
Good luck in June!