Once you're sure of your wire / cable integrity, you can begin the hook up. Plan everything carefully. You don't want to start cutting the cables to length, only to find a piece of equipment can't go where you thought it could.
The good news is that home theater equipment is better than ever, and more affordable to boot. In addition, there is much help available, on the Internet or from one of the many qualified custom installation firms in most areas.
It's a sad fact of life that we all can't have an unlimited home theater (or home, sports car, or vacation) budget. You'll need to determine a realistic budget. One of the spending ratios that can be used is: Video Display - 30% Speakers & Subwoofers - 35% Receiver or preamp / amp combination - 15% Source Components - 10% Interconnects, Wire & Accessories (power conditioner, etc.) - 10%
Dimmers are essential to create appropriate lighting ambience for a theater environment. There are several types of dimmers that can allow remote control of your lighting, either using an IR remote or a lighting control system.
The most dramatic change in bass caused by subwoofer placement has to do with the interaction of the subwoofer and the room itself. Because of the relationship between a room's dimensions and the wavelength of sounds, certain frequencies are reinforced and certain frequencies are canceled at different areas within your home theater (or any other room).
If your budget allows, you can used advanced construction techniques to keep your theater soundtrack from annoying the rest of your house, your neighbors, and scaring the neighborhood pets. In addition you can keep outside noises from intruding into your theater.
Custom scenes (connecting up to 250 switches) in your living, family or great room, kitchen, study, master bedroom/bathroom, and office. Turn off all lights in your home at the touch of a button. Automatically (Timer Scheduler) turn on/off outdoor security lights, heating and AC, or provide night light convenience anywhere in your home. From creating a virtual 3 way switch anywhere in your home, to turning a group of lights when your garage door is opened, door bell or phone rings.