I'm sure there are people out there reading this who have held off from buying a KVM switch because, frankly, they're a bit dodgy. It only takes one missed switching-keypress and an instinctive jab at the space bar to inadvertently close an important programme before you start doubting the reliability of most consumer models, and when you add in the limitations in range of both USB and PS/2 cabling, they can be more of a liability than a boon in mission-critical environments such as trading floors, security control and AV production. That's where high-end Remote Graphics Units (RGU) step in, and of all the brands one of the most well-known and trusted is graphics specialist Matrox.
So when Matrox release a new one, people with important keypresses to be made take notice; I bet they'll be all over this. The F1220 lets you extend one or two displays, audio, two IEEE 1394 FireWire ports, and up to six USB devices, including keyboard and mouse, by up to 820 feet (250 meters), and supports both monitors running at up to 1920 x 1200 thanks to the in-built 128mb of graphics memory.
A fanless design, it's a quiet and flexible unit that communicates with the serving PCs via a multi-mode fibre-optic cable.