One PC shared by multiple users as individual desktops for each at the same time (see link softxpand) unfortunately this isn't a free option (trial download is available).
OS: Will be Win XP Pro
Application: Office use (word processing, emailing etc.)
Reason I'm looking into this option is costs. I currently have the additional screens, k/b & mice for each user/desktop. So I'm at the point that I actually need to go out and either by a PC box and extent the current network infrastructure. From what I understand with this option is I basically just need to get the software and a screen card for for each user/desktop to put into one of my current pc's and bob is your uncle, you have for e.g. 4 new desktops at a third of the cost it would set you back to get a pc for each user/desktop.
So is anyone familiar with this type of setup that could maybe give me a quick feedback on the pros and cons. Alternative suggestions to the linked solution that is better (please state why, being free obviously would be a deal closer

The obvious cons I can see of hand is if there is a hardware failure on this PC all the users on that pc is dead in the water, plus it should be a rather strong pc too.