Yes, most EC's doing new work do cable/Cat5 wiring now, and have for some years. They would be fools not to, it's $$$... I said (off the record) that as the code does not specify a location....drop it in the garage or basement, or any inside wall on the utility drop side.
That's NOT the answer I would want to hear. Do it for the money and don't give a crap about your work.
-Hal
