Apple TV
The diminutive 8-inch-square and 1-inch-high Apple TV works a like a charm and is a cinch to set up. Just plug everything in, note the five-digit code that it displays on the TV screen, and enter that number into iTunes on your computer. Things get a bit more complicated with Wi-Fi, but even here the Apple TV's setup is easier than most--if you stick to the established 802.11g standard. Interoperability issues between some current draft-n products forced me to use Apple's own AirPort Extreme Base Station to get the Apple TV to operate over an 802.11n network (it's the only 802.11n media streamer in the group reviewed here).