[ZrByte]

Originally Posted by gazzae

All I need is something like this isn't it? Then I can plug it in front of the 4way?

http://www.amazon.co.uk/200Mb-Homepl...ef=pd_sim_ce_1

Yes, in theory. Though it is possible the 4way or devices connected to the 4 way could interfere.
Dont forget you will need two of them too.