I encourage you to actually crunch the numbers to make sure you have the correct perspective on the tuition and its impact on what your loan payments will be like.
Here's a loose but effective comparison of a school charging 41k/yr versus 31k/yr:
Assuming carrying over UG loans of 50k and a worst case scenario max FFELP interest rate of 8.5% at a 10 yr payback term
(you can increase the term to 15 or 25 yrs lowering your overall monthly payment)
41k x 4 yrs = 164k + 50k UG = 214k = $2,625
31k x 4 yrs = 124k + 50k UG = 174k = $2,134
Difference: $491
For me, right now, at a resident's stipend of ~$43k, that 491 would be a little tough. Could I do it? Yes. But you also look at your projected salary for the field you want to go into.
For example, Gastroenterologists are one of the higher paid specialists out there. For the data I currently have (MGMA 2003), post expenses, post malpractice costs, but pre-tax, GI's made an average salary of $169/hour. At the average 40 hours worked (MGMA 2003) for a GI, that's 352k a year.
With respect to loan payments, adjust your perspective a little away from your $9-$14 an hour after school job you now work.
Bottom line, for me, even if I had not specialized, a high versus moderately low tution is really a non-sequitur in the larger scheme of things.
Here's a good calculator for comparing costs:
http://www.finaid.org/calculators/loancomp.phtml