Compared to the Polycom system, the high-definition camera required more room illumination to produce a picture with natural-looking skin tones and moderate contrast. However, LifeSize pulled ahead in video quality. The true high resolution (even though it's limited to 720p) made a noticeable difference in picture clarity, especially when zooming in on small objects. People, too, appeared more realistic.

The system includes a single high-definition microphone (a dual MicPod is optional). With full-duplex audio, conversations were natural, with no echo.

The LifeSize Express interface that's displayed on a room monitor is aesthetically pleasing -- and performing common tasks didn't require more than one or two steps. For example, the main screen shows what the near camera is viewing along with options to place a call. Once you're in a call, the solidly constructed handheld remote is used to zoom the camera, take control of the far system's camera, and change video sources. As with the Polycom system, LifeSize also lets you control a lot of conference functions from the Web interface.

Naturally, HD video requires more bandwidth compared to standard definition. On many tests with my marginal cable modem connection, LifeSize automatically switched to a lower screen resolution to match available Internet speed; there are 50 resolutions for the best experience at any bandwidth. But when I was able to coax enough bandwidth for high-definition video, the experience was definitely very immersive.

Next, using the Web interface, I made appropriate directory entries for non-LifeSize systems that used other standards, such as H.323 video phones. LifeSize Express didn't have any trouble connecting to these systems.

On the security side, the Web interface let me disable HTTP, SSH, and Telenet services. Privacy of conferences is handled with H.235 encryption.

Overall, LifeSize Express 200 has a lot to love. The diminutive codec is quick to set up and reduces cable clutter. When there's adequate bandwidth, picture quality is outstanding. Using and managing the system, including connecting to standards-compliant competitors, requires minimal effort.

Yet this all comes with a price: the monetary cost and some of the flexibility you give up compared to Polycom's QDX 6000 (such as more video and audio inputs). For SMBs with the appropriate network infrastructure and the need for HD video, LifeSize is a wise choice. Yet for half the cost, Polycom makes a compelling argument, especially for organizations with a number of remote offices and home workers.