It sounds like your HR is scrambling to get their arms around your transition and does not know where to start.
The easy one is the name. Until I go full time at the start of the next school year, I know that I am going by my male name 100% of the time. It removes the possibility of confusing people. Unless you are ready for everyone to address you as Julie, even if you are wearing a 3-piece Armani suit, I wouldn't worry about it.
In regards to literature, HRC has some good materials that you can download and print. The advantage of using this as an introduction is that it is short and to the point - thus increasing the probability of it being read & used. I handed my administration a binder loaded with such materials. Other resources would be
NCTEquality.org and glaad.org.
Along with the binder of materials, you might want to buy a copy of
True Selves for your local HR rep. The materials in this book could help answer questions. I know that my district did a manditory book-talk using this text for the administration, counselors and other appropriate personnel.
HR is looking for you to take the lead in this dance. This is your chance to make your transition as easy as it can be for you and everyone else who will come after you.
Chaunte