This is the exact boat I'm in. I quit the day job in May to do school full time and am living off of loans.
Make sure you max out your Stafford Loans first. They're best interest rate. They will only loan you Stafford Loans up to a certain amount, depending where you are in school. For me, as an example, max per year is $10,500.
Then look into private SUPPLEMENTAL loans... they're loans that will make up the difference between the above Stafford and the cost of attendance at the school you're at. This cost, I learned, is predetermined by the school and is based, really, on what it would take a student of typical college age living on campus, etc. There are two types of these: certified, and uncertified. Certified means they check with the school to see how much aid you've gotten and loan you the difference. Uncertified means they'll just loan you up to the predetermined amount.
Finally, there are supplemental loans that are on top of the above; essentially private loans based on credit rating. An example is myrichuncle.com.
Also check out: http://www.simpletuition.com/student_loans
good way to do some comparison.
Also, in some states, Kentucky, for example, if you borrow your student loans from certain lenders, you can participate in a forgiveness program, getting percentages of your loan forgiven for working in the state. Check it out with your nursing school or online.
Hope that helps and wasn't too much.
Best of luck,