Since you're able to think about this early in the construction process, I recommend doing as much to future-proof the place as possible.
Some recommendations:
1) Run cat5e or cat6 network cable to each room of the house that connect to a gigabit ethernet switch (8- or 16-port, depending on the number of rooms) (don't forget the kitchen and bathrooms).
2) Run conduits between a large (3-gang) box from each room to a central area, such as a closet or basement or garage. This allows future-proofing by being able to run wires easily after the fact.
3) Wire for speaker jacks (L/R/C/surround x2) in living room and any other room that may be eventually used for home theater purposes.
4) Cable TV jacks to each and every room.
5) Consider running fibre to each room (expensive, though)
6) Check out X10 home automation. smarthome.com is a good source for those kinds of products.
7) Wire a second set of 75ohm coax to each room (in addition to that used for cable TV) for digital audio communication.
8) Consider putting a wireless access point if you have a laptop or other device that could make use of it. You may need more than one access point if your place is sufficiently large or has obstructions to the signal.
9) I don't have much experience with them, but consider those subwoofers that go in the floor joists for the home theater room.
10) Consider additional soundproofing (double 5/8" drywall, insulation in floors/walls, etc) around the room that might be used for the home theater.
11) If you're interested in a security system, get the company involved while construction is underway.
12) Wire dedicated 20 ampere circuits to the living room or wherever else you may anticipate a home theater/stereo system.
13) Consider building dedicated closet areas for A/V gear that is well ventilated.
Those are just a few thoughts to get you started.
Just remember that it's a lot easier to put these jacks in ahead of time, so err on the high side. I renovated a house 10 years ago and wired it well (for the time). The best decision I made was the cable TV jack that I put in the bathroom so I could watch TV while in the hot tub.
Good luck!
Michael
Some recommendations:
1) Run cat5e or cat6 network cable to each room of the house that connect to a gigabit ethernet switch (8- or 16-port, depending on the number of rooms) (don't forget the kitchen and bathrooms).
2) Run conduits between a large (3-gang) box from each room to a central area, such as a closet or basement or garage. This allows future-proofing by being able to run wires easily after the fact.
3) Wire for speaker jacks (L/R/C/surround x2) in living room and any other room that may be eventually used for home theater purposes.
4) Cable TV jacks to each and every room.
5) Consider running fibre to each room (expensive, though)
6) Check out X10 home automation. smarthome.com is a good source for those kinds of products.
7) Wire a second set of 75ohm coax to each room (in addition to that used for cable TV) for digital audio communication.
8) Consider putting a wireless access point if you have a laptop or other device that could make use of it. You may need more than one access point if your place is sufficiently large or has obstructions to the signal.
9) I don't have much experience with them, but consider those subwoofers that go in the floor joists for the home theater room.
10) Consider additional soundproofing (double 5/8" drywall, insulation in floors/walls, etc) around the room that might be used for the home theater.
11) If you're interested in a security system, get the company involved while construction is underway.
12) Wire dedicated 20 ampere circuits to the living room or wherever else you may anticipate a home theater/stereo system.
13) Consider building dedicated closet areas for A/V gear that is well ventilated.
Those are just a few thoughts to get you started.
Just remember that it's a lot easier to put these jacks in ahead of time, so err on the high side. I renovated a house 10 years ago and wired it well (for the time). The best decision I made was the cable TV jack that I put in the bathroom so I could watch TV while in the hot tub.
Good luck!
Michael