Kristine,
  When I was the NCOIC of a field hospital lab the only training we did was
from the 91K training books. Poor choice, I know.  I also had a lot of links
to the AMEDD web pages, but they had more field training and a lot about how
DEPMEDS works.
  As a microbiologist I brought in some interesting Gram stains, and a hemo
specialist brought in some very nice diff slides - different leukemias,
malarias, Babesiosis, etc.  Most of the slides just reinforced the training
books.
  Do you have any contacts with hospital labs that you can get some useful
slides? How about your chain of command - any contacts? Some of the docs
might be able to do an inservice on a specific topic.
  Do you belong to SAFMLS (the Society of Armed Forces Medical Laboratory
Scientists)? That is a great resource. If you don't then check out
www.safmls.org.
  Contact the companies that make your equipment. If you are still using
the BD QBC then give them a call. I'm sure they would have some resources
for you.