Now, he wants multiple sockets, to add Xbox etc. Would the simplest solution be to spend a tenner or so on a switch? I've never used a switch. Wiring is simply a CAT5 cable from the wall socket to the switch then similar cables from the switch to PC, Xbox etc? Any complicated set up or plug and play?
Looking at a D-Link DES-105/B 5 Port 10/100 Metal Housing Desktop Switch from Amazon, or possibly a cheaper option such as Edimax 5 port 10/100 Switch at less than a fiver from eBuyer.