Hello again - yes, Seton Hall has showers - they even have shower chairs you can put in there. If there's not one in your room when you arrive, just ask for one. I actually had to switch rooms and the second one we were in had a built-in seat in the shower.
There is a pharmacy right in the House Clinic building which is directly across the street from the hospital - very convenient.
Know just what you mean about being ready to just get going and get it done! Once the decision was made and the surgery date set, I was quite ready to be done with it all. You'll be a postie, though, before you know it. We arrived in LA two days before surgery in order to be able to tour the town the day before pre-op appointments. I had the unbelievable privilege of being accompanied by one of our very own forumites, Nancy (NL), on a tour of LA. Hollywood, various attractions in between and on out to the Pacific. Was SO great! Hopefully, you'll be able to catch up with some of the LA folks - they usually at least try to meet up w/ people on their pre-op day in the St. Vincent's cafeteria.
Best to you,