Walk through each room of your home and make notes about the digital equipment you already have, what needs to be upgraded, and what you wish you had. Do you want a flat-screen television in the family room? In the kitchen? Do you want surround sound? A wireless Internet connection? An Internet-enabled refrigerator? How about motorized draperies? Zoned heating and cooling? Go nuts. Next, underline your must-haves and rank the top five. Start your research here.