Summary: I have a G5. It came with a 2 monitor video card. One plug for DVI and the other for ADC. I feel lucky I found this monitor because it was getting real hard to find a converter and new monitors are a lot more expensive.
Conclusion: I am quite pleased with the display, the only thing I noticed is one very small artifact on the monitor near the bottom left corner. It appears to be something on the inside of the glass/plexiglass? I don't think it is defective LEDs. I am very happy with the bright crisp images.
Conclusion: Fantastic but expensive. It's very convenient for any MacBook PRO owner with the easy to connect cable. The display has all the features to extend the MacBook PRO, e.g. iSight camera, microphone, and speakers.
Summary: These are Great Monitors. Full Specs at EveryMac.com These Monitors were priced at $3999.00 New, then price was lowered to $2499.00 about 1/2 way through duration of manufacture. 16.7 Million Colors 1600 X 1024 Resolution. These are a bargain (IMHO) I'v got one-had the 17" Model before.
Summary: The Apple Cinema Display is, quite simply, the best monitor in the world. Like all LCD monitors, the 22 inch diagonal measurement of the Apple Cinema Display is a measurement of viewable area.