ConnectPro Home Theatre Installation

[t1]

I'm just moving into a new house, and I need to mount a 46in LCD above the fireplace and need to put install  either inwall or ceiling speakers in the front.  So how do i determine what mount/speakers/misc cords etc, I need , prior to a Connect-Pro install appointment? Is this a install Connect-Pro can do and will I need a consult  prior to the appt?