"Hidden" problems/Questions for interviews

Greetings All,
I am taking my first steps towards traveling. I've read through the postings (as suggested) and have been going through the various agencies on the net. I have been in contact with a few, so I am on my way.
My question to you is-what has been some of the "hidden" costs or problems that you wouldn't necessarily pick up on as a first time traveler just getting into the business. For instance, I din't realize that utilities was a seperate issue from free housing and had not thought about it on my own. I am afraid there will be other things that I might miss in trying to decide who to go with and how to truly calculate the cost/benefit to travel nursing.
Also-I will be marketing myself primarily in Labor and Delivery (med/surg as a back-up). Any particular questions/concerns I should ask or be aware of when talking to a prospective employer???

Thanks for taking the time to view this post and for your response

alwayslearnin (boy, ain't that the truth!)

If you are going with a full service agency, then all of your utilities should be included, including telephone, etc. The only things that I pay for are my cable modem, and an increase in cable service, basic is provided. Not sure who you are in contact with. If they aren't included then it isn't completely free housing. Your apt should be fully furnished, and I mean fully. With dishes and linens, as well as tv. A furnished apt can mean just basic furniture, and nothing else. Definitely not acceptable to me.