Keep it simple.
- Apple Cinema Display
- Bluetooth Keyboard, Mouse, Remote (Salling Clicker to cellphone)
- 60 GB firewire drive upstairs to walk video around when needed
- Wall-mount speakers
- Woofer in basement
- MacMini with 250 GB external drive, EyeTV tuner, Airport in basement
- Audio mixer to allow Airtunes (from powerbook) and movies (MacMini) to use same speakers with no switching.
Number of electronic gadgets plugged in in the living room: Zero.