I've just installed Apple Hue (lamps manufactured by Philips, Zigbee lighting standard) in my train room for scenery lighting. Although lamps are pricey ($60/bulb USD), I envision expanding to several rooms thru the house to create different ambience scenes. Color changing, WiFi/web controlled, dimmable, 600 lumen, equivalent to 50w incandescent, and 8w each.

iMac --> ATV --> 568.1 --> M33 LCR + M555 --> AIM8Five + B&W PV1 + Panny 50" HD
iMac --> Apogee Duet --> Neumann KH120A
Anapeg SD11 Pedal Steel Guitar --> Hardwire RV7/DL8 --> Telonics FP100 Volume Pedal --> Little Walter Tube Amp --> Telonics Cab + Eminence EPS-15C