Paul T. said:
I am somewhat scared to say I have worked on Macs for publishing for 20 years now, through practically every variant of Quark Xpress (and now InDesign) and Photoshop. Every five years or so, every finance director in the major companies I've worked for has tried to change the environment to a PC one - yet every time, thankfully for me, cost-benefit analysis has shown that the savings for switching to PCs has been more than offset by the fact that they're slower for various crucial graphics tasks. Even today, the vast majority of repro companies use macs for heavy duty PrePress and retouching work.
The Apple Cinema displays are bloody expensive though - I believe Philips makes he LCD panels for some or all of them, and that similar monitors using the same LCD panel, with various differences, are badged as Dell. However, the iMac package is a grat one for the money, and if I were starting from scratch that's definitely what I would go for.