Deciding on a computer to run Artist can be complicated.
A Word about Performance
The performance of a PC is dependent on the speed of the processor and of the data busses with which it communicates to memory, graphics and disk drives. In fact these days the speed of the processor is a lot less important that the speed of the communications channel as you experiences with the internet will tell you. Laptop computers run their data busses much slower in order to conserve power and therefore are unsuitable for large DMX schemes in excess of 2 universes.
On a laptop XP looks very nice but this comes at a price. The cost is measured in graphics performance. For smaller installation this will not present a problem, it may however labour to display a larger system.
If the performance on an XP laptop seams laboured go to 'Control Panel/System/Advanced/Performance Settings and uncheck 'Use Visual style on Windows and Buttons'. When you apply this change windows will now have the appearance of a Windows 2000 system but the performance will be greatly enhanced.