And then you can be like me where one month I lived off less than $900 total and the first month of school I'm at ~$1200 because I have an addiction to vet school gear/swag. I spend less than $80 on my grocery bill. Rent and utilities are $565 total. Gas is $100. Oil change every 3-4 months is ~$30. I get something major fixed every 6 months it feels like, however. So that'll be ~$600 (though my truck is running out of things to fix).
You need to look at a three major factors:
1) where you're willing to go to school?
2) how you're willing to live?
3) how much money will you make a week?