My older daughter is headed to med school and will probably graduate with a quarter million dollars' worth of debt, not counting a year in between years 3 and 4 to go elsewhere for an MPH. She plans to go into global public health, which isn't exactly a big-bucks field either. Kudos to both of you for going into areas really needing help, as opposed to giving Botox injections or something.
Good luck, and anyway, as the others said, concentrate on the revolving debt and just be sure to keep current with the student loans. They seem to be in a special category, even within installment debt, and they probably aren't having that much affect on your scores, odd as that sounds. The main thing that anyone can do over time for their credit is to remain squeaky clean in terms of timely payments, and be judicious in acquiring additional credit. Be really choosy when looking at new credit, as in "Do I want to see this thing on my credit reports for the next ten-plus years?"
If you have time, you might want to read the High-Achievers thread in my siggy. For young people (I'm 53 --everyone's young!), it can get you thinking about where you want to be over time.
* Credit is a wonderful servant, but a terrible master. * Who's the boss --you or your credit?
FICO's: EQ 781 - TU 793 - EX 779 (from PSECU) - Done credit hunting; having fun with credit gardening. - EQ 590 on 5/14/2007