I started out navy nuke enlisted, then commissioned in the Air Force through ROTC. The Air Force has me doing program management now, not real engineering work.
The $8/month Netflix is the best thing ever. Use it on the Wii, Xbox 360, iPhone, laptop... was great to be able to retreat to the guest room at my in-laws and catch a good movie over their WiFi.
If you had recently finished graduate school, you could get by with minimal studying...maybe one or two practice tests. I wouldn't try it without taking at least one practice test.
My personal opinion is to only take in references that you've studied with recently. I wasted about 10 minutes fumbling with a book that I wasn't very familiar with.
I was a ChemE undergrad with only a few nuclear graduate-level courses. Bone up on shielding calculations, dose/dose rate, and the ANS study guide is a good investment. You should have no problem. I'm thinking of trying the ChemE PE next year.