Fantastic. Assuming you'll get good recs from the professors you've worked with, you should be fine. The next most important thing is that during interviews, you show enthusiasm and show that you understand the rationale behind the experiments and not just the methodology.

As for what you're interested in studying, you might not want to go for neuroscience graduate school. Studying abused kids is more in the range of psychology/cognitive science. For neurodevelopmental disorders, you can certainly study it from a hard-core neuroscience perspective, but expect to spend more time on the molecular or circuit mechanisms. Most developmental neuroscience is really focused on how circuits assemble and is very molecular. However, something that may interest you is early plasticity and critical period work, which nicely unites behavior and molecular/circuit analysis.