If you plan to study for the LSAT, really study it. I just read through a book about the LSAT, took some sample tests and thought I would improve my score.No such luck. You will need to really crack down to do better. My practice test scores were 156, 156, 154, 156. My actual LSAT was 155.
With a 2.3, I probably would apply to a top 25 law school (but, that depends entirely on your LSAT). But, apply to 2-3 "reach" schools, 2-3 questionables (where your numbers are on the lower end, but experience will make up for it) and then 2 "guarentees". This should keep your costs down and your chances high, hopefully. Keep in mind- lower tiered schools tend to offer much more financial aid, which could be esential in your situation. Good luck!