Different continents, but have a look for ATEN KVM. This one been working for a couple of years now without hitch after the previous more expensive switch packed in.

The out cable carries everything and splits at the computer end.
The unit normally hangs off clip back of the desk and I switch - 2 taps on the scroll key. A manual toggle would be nice but because of the cabling not practical here anyway.
Snags
built in cables are 1.2 m (4')
note the VGA and check on maximum monitor size - my current 1920 x 1080.
Things to look out for.
beware of anything Belkin

If the unit does not come with cables (see above) the cost of the cabling might be as much as the KVM switch.