Per Diem rates in NJ for new grads

As one of many on what seems to be an exhausting job hunt, I've heard more and more stories of new grads getting their first jobs as per diem nurses, even interviewing for one myself. As a nursing student, we were always told per diem jobs were an impossibility without experience. Since they seem to be within reach, how would one negotiate a per diem rate as a new grad? Is there any room for negotiation in this? I assumed per diem rates were very individual depending on the type of floor and experience that particular nurse had, so how does a new grad fit in? Anyone know what would be considered a high/low range?