Hi, I need some buying advice. I need a kvm switch for a DVI monitor and logitech wireless USB mouse and keyboard. I was told the IOGear GSC1104 ones are good but they don't seem to be available in Europe. 2 ports is ok but I can go a bit more expensive for 4 ports. Sound isn't really important to me. I've had a few cheap ones in the past that never worked properly so this time, I am prepared to spend a bit more to get one that just works and is reliable. Any suggestions?