Dear L.,
Congratulations on your baby!
Honey, I hate to say this....
But you won't know exactly what will work for your baby until it gets here.
Nursing your baby is the best and most wonderful thing, in my opinion. I nursed both my children. Your breasts may get quite sore in the beginning, but I still found it to be very enjoyable.
When your baby gets here, you will get things figured out. Some babies can have regular formula, some need a soy version. Both my children went to cow's milk with no problems, but other children may have an allergy or not be able to digest it easily. Every child is different.
You can introduce sippy cups fairly early on. My son had one with handles on each side that I kept, empty, in his crib and in the playpen. He held it, shook it, chewed on it, sucked on it, played with it. It was a great diversion when I was changing him. Then I started putting a little water or juice in it when he was sitting in my lap or in the high chair. We took turns having a drink. They get the hang of it.
Well, you take care. You will be a wonderful mommy!
Be sure to let us know when your baby arrives.
Blessings!