doesnt matter if u have wireless key board and mouse.
What u need is a keybaord switch, I have Dlink with four pc support.
I would suggest the Linksys, go for four port as you will soon out grow the two port switch.
My wireless mouse base is hooked in the Switch.
and the switch is connected to the pc's/ laptos using wires (keybaord/mouse) u have to buy with the switch