Thanks Lorna - That's a great site!
My XPS 630i is in really great shape, just kind of warm in my small office. Thinking that this might be a good time for an upgrade of hardware/software, so trying to determine if the XPS 8700, for instance, would be a cooler-running system.
The specs say 460w power supply for graphics card, so it won't support high-end gaming cards. Was hoping to get something like the nVidia GeForce GTX 550 but wonder about the heat output and if I will need to add more fan-power to the new machine?