A couple points:
(1) Used books. I'm big on selling and buying used books. The problem in law school is that they never announce what book you need until very close to the semester starting - and it's really hard not to buy the book before the class starts (because you're going to need to read stuff). I recommend half.com. lawswap.com looks good, but I've never heard of anyone having success. You can also sell books on this board - I've been successful at that (just start a new thread announcing you books and price). Finally, the SBA does have some good books. Staight ahead and a little to the left as you walk in the building. I've picked up a couple deals in there (and I have one book in there to sell - it's also listed on half.com).
(2) Salary stats:
I'm sure the CDO didn't alter the stats, but notice that they choose median instead of average, and that they divide by sector. All that $125k tells us is that, of the people that got private sector jobs, at least half of them were at big firms. Remember that you don't get to just say "I'll be working inthe private sector" and put yourself in that pool. The statistics could be read to say that big firms are the only private sector job anyone is capable of getting! Also, remember that they're always going to be outdated, and I don't know if the list accounts for those that are unemployed. (ie What if only 3 people got jobs at all, and two of them were at big firms - you'd have the same 125k median private sector salary, but it would a huge error to interpret this as giving you a good shot at 125k.)
One final note: even if you're become one of those 125k people, it doesn't mean you had your pick of firms. I know plenty of people that only got one offer - and I know even more that didn't get any offers.
I'm not trying to scare anyone or be negative, but be analytical about the meaning of those stats.