3 Way Keyboard and Mouse Switch

[Jano]

I currently have a two way switch I use for controlling my main PC and work laptop with my keyboard and mouse, and have recently created a server in the same place rather than having an HTPC downstairs. At the moment it's controlled by an all in one keyboard thing with a trackpad which is a little fiddly for controlling when I'm ripping/encoding films. Can anyone recommend a half decent switch box thing I can use? I'm struggling to find anything more than 2 way that costs less than £50. It doesn't need to feed the picture to my monitor as that has three connections anyway.