I recently upgraded my KVM switch. The number of machines I use on a continual basis had grown beyond two and I really need a better 4 port unit. I ended up buying the IOGEAR GCS-1744 (pictured at right).
This particular KVM switch is also a dual monitor device that of course allows you to extend the desktop across those monitors.
Right now I only have one machine capable of driving two monitors, but pretty soon I’ll have two. The laptops of course cannot drive two monitors without help from a docking station or some other external device.
I am considering trying the IOGEAR USB->DVI device to see how it works with the KVM switch for extending the desktop. Unfortunately they list 1600x1200 as the max resolution for the device. I need to check and see if it will do 1680x1050. It doesn’t look like it will do that res and it would be my minimum bar.
Anyone doing something similar? I already tried the Matrox DualHead2Go.