About $150K by the time it's all said and done, mostly unsub Stafford loans. I'm an old Stafford borrower (pre-1993), so I only get a 2-year deferment during residency and have to start making payments during my 3rd year. I think they will be around $1200 or so for 10 years, though I'll probably have to look into some sort of graduated payment scale. When I start residency, I hope to have 2 kids (have 1 already) so I honestly don't know how we're going to make it once the loans are due. It'll be a rough year.
Once I'm in practice though, my plan is this: assuming I get a low-paying primary care job making *only* $100K, I'll put myself on a strict salary of $35K. I grew up in a poor neighborhood, where $35K is considered very good money. (My dad supported me on less than half that.) Assuming that another $35K goes for taxes, I'll put $30K towards loans every year. Following that plan, I should hopefully be paid off within 5-6 years. I'm not big on luxuries, so no problem putting off the new car, house, and vacation spending for a few more years. If I get a job making more than $100K or that includes loan repayment, so much the better.
Yes, the loans freak me out big time, especially since I'm planning a career in primary care AND a family. I guess I try to look at it like an investment, sort of like buying a house. $150K is probably about what an average home costs, yet most homeowners make nowhere near the amount of money physicians make. The home is an investment- so what if it takes 30 years to pay off the mortgage? An MD (or DO) degree is an even better investment because it keeps reaping dividends for the rest of your life (well, as long as you remain in practice anyway.)