The Apple 23" Cinema display is a classic monitor with excellent colour reproduction, stylish looks, and good colour consistency at different angles of view. DVI-D equipped with a full sized socket, it will work easily with all earlier DVI Macs, and is supplied with the adapter to mini-DVI.
This model is no longer made, but can be had second hand via Amazon. It has the full sized DVI connector, though it's supplied with the DVI to mini-DVI adaptor as well. It also has two break out USB and two break out Firewire 400 connectors sockets, for which you have to sacrifice one Firewire and one USB if you want to make use of them. It doesn't have the built in MagSafe adaptor that later models do.
Calibration is very easy using Apple's built in calibration tool, and if colour is important to you at all, you ought to calibrate this monitor as soon as you get it. If you are looking for print quality calibration, you can use an external calibration device.
If you're using this with a MacBook Pro, and you've never used an external monitor before, then you will be surprised about how ridiculously easy it is. You just plug it in, the laptop finds both screens -- or you can close the laptop and only use this screen. If running both screens at once, you can position the monitors virtually so that they match up exactly with where you have physically placed them, which means when you move the mouse from one to the other, it acts as if you were moving smoothly through space. You may find it difficult to calibrate the laptop and Cinema displays to exactly the same colour, and for that you probably do want an external calibration tool.
I really like this monitor. There is a slight pinkish cast when you don't view it straight on, which means the edges of the screen are very slightly pinkish, unless you move your head. From extreme angles you get a greenish tinge. However, you would never actually use the monitor at those angles, so it's rather a moot point.
This is a brilliant monitor with excellent clarity, definition and colour reproduction, and a really strong contrast, which is good if you have it up against a window or are working in a bright office environment. It is also beautiful to look at, and is ideal for watching movies and web-TV.