Yes they did have baby sitter for hire crumpet, we never used it though. My kids went to kids club twice and they loved it (they were 4.5 and 2.5yrs at the time).
There are literally heaps of resorts/hotel in the nusa dua area. There was one being built next door to novotel when we were there which was looking amazing, can't remember what it was called though? Overall we loved the novotel, its not as new as some of the others in the area but it was clean and comfortable and well priced! The massage/spa treatments were fantastic too, can highly recommend you book yourself in for some pampering!