RN interview..after a yr of exp and using old letters of ref?

Hi,

So on tuesday I have an interview for basically my dream job.. noc shift, 12 hr shifts, Oncology unit of a very good hospital back home! (I moved away for nursing school and now that I have a yr of exp, I want to move back..and I very much want to specialize in Oncology).

I have the numbers of a few of the Nurses I work with now who are more than willing to provide me a good recommendation/review (charge nurse and two of the people I precepted with when I was still in orientation and have since worked with for the last year on my med/surg/tele unit) but no letters of rec as an RN... I have a few rather good ones from my days of being a CNA which were written as I was leaving those positions for nursing school. But I'm not sure if these are worth bringing or not.. ?

Suggestions? Thoughts? (and any side interview tips would be great too heh I'm so nervous cause I want this position so bad!)

Thanks! =)
Can your current manager, charge nurse, and even a doc write something for you? I always asked for a written letter from places I worked at- you never know when the people you knew will move on, and nobody can say anything personal that can give you an edge