The actual amount paid back will obviously vary with interest rates and total debt... Plus, some have consolidated loans which can lower payments but extend the pay back period.
I suspect you'd like real numbers, so I'll share what I know.... I have friends who pay anywhere from $800-1800 per month and will owe that for 30 years. My hubby's is in that range; mine is lower because I did an agreement with my current employment site where they paid for med school in return for 4 years of work. Since it stinks here, I'm leaving after 3 years and will need to buy myself out to the tune of $31,000.

Ouch. Had I gone the traditional route with all loans, I'd be looking at the above monthly payback as well.
Some more rural areas will provide some loan payback money for service. As an example, my husband will get some money from our hospital and the state for three years of service. Some of these programs are very dependent on having your area deemed a high need one.