words of advice for the psf year -
1. review basic histology of normal structures as soon as possible, so you know what you're looking at when you review slides with residents or attendings. Useful references include Wheaters, Junquiera. Also several good websites out there...
2. be very disciplined about reading - it's very helpful to read about the cases you've seen. Also, choose a basic surg path textbook and set reading goals for yourself - you'll be less likely to fall asleep on the scope during your first sign-outs if you learn some of the more common specimens (depending on your institution, of course), especially gi, placentas, prostate.
3. If your department has teaching slides, study them.
4. If you're not necessarily going into path, you might want to review the clinical aspects of the diagnoses you see - a good way to prepare for your return to med school after the psf.