I am buying a house that was prewired for a HA system. There are cat5 and rg6 cables everywhere! Looks like the builder ran out of money and never got the HA system components installed even though all of the pre wiring is complete. All of the wiring runs back to panels in the control room. All of the lights in the house can only be turned on/off from temporary switches that were installed and labeled in this control room. There are no light switches anywhere else in the house, only cat5s stubbed out of the walls. The house is meant to have audio/video, security, lights and more run off this system. Being new to HA, I am looking for suggestions on which systems could run a house like this without breaking the bank. My first/biggest goal is to be able to turn lights on in each room, but I would like the system to be able to handle the a/v and security so I don't have to upgrade later. Please help!!