Liz Pulliam Weston crunches some numbers and comes up with some depressing numbers.
If you're a student, your payments shouldn't exceed 10% of your expected monthly gross income once you graduate...
[If] you borrow the maximum allowed under current federal student loan programs, $23,000, in subsidized and unsubsidized borrowing for dependent undergraduate students -- your monthly payments will be around $276.
That payment level should be manageable if you're making at least $33,000, which means you'd better be an accounting or business major...
Liberal arts grads, on the other hand, generally have to settle for salaries under $30,000 to start.
Beginning pay for psychology majors is about $26,000, while English majors are getting about $28,000. At those pay levels, you're better off borrowing no more than about $18,000 over your college career.
This is not good news considering that the average debt of those with debt is now $20,098