Good recommendation
I would recommend the
Dell 2407WFP for $629 (an all time new low price on sale now) and a
ColorVision Spyder2 Calibrator if you need to make sure the color is exactly the way you want it.
The Dell 2407WFP also rotates. What's your graphics card in SPECIFICALLY what G5 model? If it's ATI you have rotation support. If it's nVidea you may or may not have rotation support with 10.4.9. I see it's nVidea FX 5200 Ultra. Probably not. Oh well. There may be an ATI PCI-X video card you could add.
Very Good Recommendation.
I would add this:
If you are a graphic artist, to whom a colorsync color matching system is important, then the ACD provides a complete out-of-the-box solution that integrates with ICC profiles from scanners, operating systems, desktop and wide format printers, Offset and Web Presses, other monitors and cameras.
However, one can do quite well by buying a more-affordable non-apple monitor with a calibrator -- this former solution can actually be more useful to this said designer. However, it is important to:
1) Buy a calibrator with software that can generate "portable" ICC profiles -- this is important so that one can "Share" the profiles with clients as they send files with this profile embedded.
2) Learn how to use the above software.
3) Buy a monitor with an S-IPS panel as the color tables are more stable and suited to desktop publishing as opposed to video or games.
If one does not wish to have the trouble of the above, or to spend the money on the calibrator (often offset by lower monitor cost however), then the ACD's are a great choice for DTP work.
My 2 cents,
Dante