I worked ER and Acute care and absolutely swear by Dansko and Allegria shoes. I have several pair (collected over the years) of each brand and I switch them out. Now, as an assistant to a surgeon, I am in the office most of the time, but I still wear Allegria and Dansko shoes. Be sure to wear compression hose. They save your life. Another plus is a seat cushion for your car that is heated. I had a 30 minute drive home and after a 12-hour shift of back-breaking work, that heated cushion made me well by the time I got home. Welcome to your new career!