Not only are there TA-ships, if you have any experience in Residential Life or Greek Affairs, some large schools offer assistantships that provide housing AND a stipend in exchange for working 10-15 hours a week with RAs or Greek Affairs. A one-bedroom apartment in a location near campus that I didn't have to pay for? Fantastic! I did this for my second year in graduate school, and it helped out immensely. The funny thing? Some people in my cohort laughed at me for "being an RA." I got the last laugh because those idiots have twice the loan burden that I do.