"Cost of Attendence" includes cost of living, generally. And you can borrow your total amount of COA, minus other aid. Like for example, your wife gets a scholarship, and takes out the Stafford loans, whatever you take the COA, subtract the amount of scholarship and the amount of the Stafford loans, and the amount that remains, you can borrow from like a Grad PLUS loan or a private lender. Grad PLUS loan is the way to go though..its govt, rate is like 8% or something similar, they run your credit but approval is not based on debt/income ratio or anything like that. I was just approved for $20,000 and my credit is in the shitter. (I do have to pay tuition out of that though so its not like I get 20K in my pocket)