Here's an absolutely amazing post from Empirical Legal Studies regarding new graduate salaries. In terms of salary you basically have two modes of law schools grad: the haves and the have-nots. The haves keep moving father away from the have-nots, whose salaries are remaining somewhat static. And I'll bet a nickel that the low end of the scale is probably underreported. The only comfort I see in the survey is that almost 10% of respondents are judicial clerks who will almost certainly end up on the right side of the chart.
In short, getting a law degree can be very risky financially, which is why I always recommend that prospective lawyers wanting the big bucks go to the most prestigious school possible. And while the thought of some big firm basically opting out of the wars and bottom-feeding for people at a slightly above average salary (>$62k....wow) while doing commodity work and promising humane hours is anathema to the big boys, but that model does seem to make sense from a pure profits standpoint.