Advice for going into Pediatrics

Hi Everyone, I'm new to the forum and I'm looking to get some advice about Pediatric Nursing. I am currently enrolled at LoneStar college Willowchase here in Houston and I am wanting to go into either Pediatric Oncology or Neonatal. What I am wanting to find out is what are the best programs/schools, do you need a bachelors degree, and how do you break into pediatrics? I have read about the certifications, but I was curious to find out if you need to have a bachelors or just hands on experience working in pediatrics in order to become certified for either oncology or NICU? I was originally very interested in the pediatric oncology field, but the more I think about it I may actually want to go into Neonatal.
If I go with a bachelors program I am thinking about the University of Texas Houston for their bachelors of nursing and I am very interested in the masters program at Penn State. Any suggestions on masters programs? Are masters more for somone that is looking to go into the admistration end of the field, or is it suggested for someone that is wanting to know more about the field?

Thanks so much for your time!

Sonseria