Truthfully, you dismiss the simple 180W brick too quickly. If you want to tap off power and get 14 volts from the 180W brick, a few diode pairs will drop the voltage cleanly to the desired voltage. Each diode pair will drop about 0.7 volts, so six pairs of diodes will give you around 14 volts. Twelve 6 amp diodes only cost a few bucks and solve the voltage issue neatly. Even easier is using three 8A bridge rectifiers, each bridge replaces two diode pairs.
You can't beat the convenience of the brick with it's excellent power protection and bang for the buck.
MCC 6A Bridge Rectifier at Digikey, 83 cents/ea, cheaper if you buy ten or more.
