NRP and STABLE are good classes to do, although a bit tough if you've never taken care of the population.
I agree with prmenrs--you need to shadow a NICU nurse to see what it's like. Keep in mind that not every unit is equal either. Some hospitals have NICUs where you take care of 4 babies who all need to be fed every 3 hours but not the "easy" kind of feeding, the kind where you're coaxing them throughout. Higher acuity NICUs tend to have lower patient ratios, but you can still have the aspect of running around, calling various services, etc etc.
Sorry about your injury
My biggest kid in the NICU was just over 9kg, so at least the weight limit is more reasonable than adults...