Hotwire,
I am in the Charlotte area and I am charging in line with what sparkync is. 75 to 80 per hour on service calls with a one hour minumum including a 15 minute drive time. Any material used is subject to a fair markup as I feel that my time shopping should be compensated. I do not charge more for Saturday and generally do not work on Sunday at all. Have to give these old bones at least one day of rest. I do not bid new home construction with the mid to larger size builders as I ran into the same thing sparkync did. Not enough money for the amount of work and time involved. I too am a one man shop and just can not compete with the larger shops. We have large electrical companies in the area wiring new homes for 1.35 to 1.50 a square foot. Best of luck to you.