F.,
You should probably ask your OB all of thse questions about the various hospitals. They probably have the best idea of the various services offered at the hospitals where they deliver babies. Where your OB delivers and which hospitals are covered by your insurance will probably influence your decision. I've had 2 babies in Las Vegas. I had my first son at Summerlin Hospital (I live in Silverado Ranch but my OB is located on that side of town and I prefered to drive over there instead of finding a new OB). I had a c-section and I was pretty sick afterward. For the most part my son was in the room with me. I just kept him in bed with me and it worked fine because I really couldn't get up and down at all the first day and after that, I could get up and down but it was painful. My husband came and went while I was in the hospital but wasn't much help and didn't spend the night and my mother in law took care of my son for the most part for the first day in the hospital. The nurses came and went and they would take the baby to the nursery or up to the nursery station for a while if you asked them to. They were super nice and a lot of help. They came whenever I called and were happy to help me out. But the philosophy was definitely that baby should be with mom most of the time. I was breastfeeding so I prefered to have him with me anyway.
I had my second son at Mountain View Hospital. He was a VBAC (vaginal birth after a c-section). He was in the room with me the entire time and I really didn't need any help. Even though I ended up with a 4th degree tear, the vaginal birth was so much easier than a c-section that I felt good and I was mobile and it was all fine. My husband stayed with me the night I had him (at 4 a.m.).
Of course for my second son, I had a 3 year old at home. I arranged to have a baby sitter. We had a regular nanny at that point and I paid her $100 to come over and spend the night with my son (I had him at 4 a.m. on Saturday morning so she spent Friday night and my husband had our son the rest of the weekend and I came home at noon on Sunday). If you have parents, in laws or anyone else, I think getting childcare for your older child is the best idea. I can't imagine that most 3 year olds would do very well spending huge amounts of time in a hospital room. My son missed me but he was happier at home.
If your baby is coming in early October, it will likely be warm still. If your baby is coming in late October, it will likely be cold. October weather can be unpredictable. You may want to start with just some onsies and sleepers. I wouldn't really buy any summer clothes for an October baby. At most, the babe might be able to wear them for 2-3 weeks before it gets cold and who knows how much you will be leaving the house during that time anyway.
:-)T.