I have two CPUs, one old and the other brand new, the first one is used for surfing/downloading purpose and the other one is used for multimedia work. I do not want to purchase separate monitor, keyboard and mouse for want of space. Recently, I found a Switch(called KBM switch) of Chinese make(Rs. 550/ for two, Rs. 1700/- for four) which can support two CPUs by a single monitor, keyboard and mouse. I just want to know the experience of some actual user.