Finally, my opportunity to interview!!!!!

Hey everyone!!! I will make this as short and sweet as I can. I finally have an interview at a great hospital for the position(s) of L and D nurse OR Maternity/Nursery nurse. I have waited 11 years to even get a call! An L&D nurse is who inspired me to become a nurse! I've been a RN for 3 years the past 2 years at the hospital I currently work at (on a med/surg unit). Nervous is beyond how I am feeling, whith a touch of excitement!!!!! I really want to work at this hospital! I was already told how much I would be making ( over the phone before scheduled interview) which I thought was weird. My interview is 3 hours long. I will be taking a med test for the first hour, meeting with lead HR manager, then off to the maternity unit to interview with bother unit managers! Does anyone have any tips for me? I am so nervous/excited and basically in complete shock I have an interview scheduled!!!!! Thanks for reading!!!!