I'd spend a some time on http://www.nursingspectrum.com in their continuing education department.
They make their CEU articles available online at no charge to read and cover topics from bedsores, falls to IV therapy and PICC lines.
The nurses eating their young bit, you'll deal with anywhere you were as a newbie. Might be easier for you since you've been a nurse for seven years just not in the hospital.
It is mostly about your attitude and work-habits once you've put in a few years.
You can find more info on nurses eating their young at:
http://www.nursefriendly.com/young
Wish you well!
Andrew Lopez, RN
http://www.nursinga2z.com