DonGould: I do agree with the comment about getting a cable co rather than sparkie though. A guy who does this 10 times an hour might cost twice as much an hour, but will do it in 10% of the time.
We had a sparkie install some data cabling at work. A month later the outlets are still not working. The sparkies have been back a few times and spent many hours attempting to fix it.
A cable co just quoted $8500 to do all the cabling again properly. The lost productivity in the office would easily cover this cost.