So all of the sockets in the
house less the kitchen are wired onto one ring circuit.

Check at your consumer unit , for the rating on the MCBs, generally speaking
the highest rated circuits will be nearest the main switch, ie 45A for a
shower, 40A for a cooker, then your ring circuits, should be 32A and or radial
circuits 20A there maybe a 16A and lighting circuits 5 or 6A. There will be B6A
marked on the mcb which means type B 6Amp mcb.
If you have 2 32A ring circuits in a 2 bed house you are no differnt to most
people, and pcs dont consume that much power,and even if you plugged all your
toys into socket circuit at once i doubt you would overload it