You've chosen a great resort for travelling with a baby. We stayed at Poly when our twins were 18 months old. Our babies had fun (we think!) at the Ohana character breakfast and also at the Ohana family-style dinner. They also learned to take cat naps in the stroller, so we'd walk the grounds enjoying a drink while pushing them around in the stroller. The biggest thing I remember from that trip, though, is being able to hop on the monorail to go to MK and Epcot. With a baby or babies, it's very handy to just roll the stroller right on the monorail, leaving all the baby supplies and the baby right in the stroller. This is especially handy at night when everyone is tired and the baby is sleeping. Enjoy being in Disney when your child is a baby -- we have our fondest memories of being in Disney when our twins were babies.