Congrats to the two of you that are starting school Monday! Believe it or not, it will be FUN!!!! I mean, you've worked hard to get where you are, NOW the fun stuff begins!
One word of advice....DO pay attention in the physics classes (which will probably be VERY specific to gas flow, etc, etc) AND, if they ever take you down into the bowels of the hospital, where they keep old, dead, antique anesthesia machines, and show you how they work, etc, etc, PAY ATTENTION! Do NOT assume that you will always work in a really up to date place that has a $60,000 Drager at the head of the table. My first job as a new grad was as a solo practitioner, and when I walked into the OR in that tiny town and saw that old antique Ohio anesthesia machine in the corner, well, I kinda sorta wished I'd paid more attention to the little critter they'd shown us in the basement of the place I trained! Everything worked out fine in my stay there, but I do think that sight aged me a few years, right on the spot!