I'm in a similar situation right now. I've started working in a 24 bed SICU that takes fresh hearts. My experience was in a smaller hospital in the ICU that doesn't take hearts (1 year), and two years of telemetry and med surg prior to that. I also worked PRN in PCU for a while so I am familiar with hearts and cath lab patients. My advice is to ask questions and to show humility. That is what has worked for me. I try to avoid saying "this is how we do it at my other job" because I know I wouldn't want to hear that if I was precepting someone.
As far as resources, check out the following youtube.com: medcramvideos, Eric's medical lectures, hemodynamicmonitor1, Dr Gallagher's neighborhood. IUcritical care, and gotresuscitation. I have found numerous helpful videos on those channels including ventilator management, pressors, shock, ACLS, DKA, hemodynamics, etc. A book that came highly recommended to me is A Manual of Perioperative in Adult Cardiac Surgery by Robert M Bojar. So far it has been very helpful in understanding the management of heart surgery patients.