If the house is still being framed then run as much low voltage hard wire as possible. CAT6 to every room and behind every TV location. I would also install CAT6 for Access Points in every floor. For most homes one AP in the center of each floor is sufficient. Larger homes may require a network designer. I would also install CAT6 for your CCTV needs, though you could use RG-6. You want all of this cabling taken to a centralized low voltage closet that has wired connection back outside to connect to your broadband provider. This could be COAX, CAT6 or Fiber depends on where you live. I would also run low voltage wiring for door, window and even motion detectors if possible. The more hardwire, the happier you will be.