That actually sounds a little low, especially if you are moonlighting as an attending in the general OR. Based on your rate, if you were were to work a reasonable 55 hours per week and take about 6 weeks of vaca (52-6 = 46 weeks), your yearly gross would be: 55 hours/12 hours * 1000 * 46 weeks = $210K. I've heard of per diem/rates from $125 - $200/hr, but some places only pay actual OR time also.