No, do not get that headset, when I first started gaming seriously(i play counter-strike 1.6) i decided to go cheap on a headset and got those exact ones. they are terrible, you can't keep them on for too long because eventually they will start to hurt your ears. i would have long counter-strike sessions with my team practicing and such and i would have to take breaks more often cause my ears would hurt from the headset. get ones that go over your head and cover your whole ears with some padding, i'll see what I can find for you. i'll edit this when i find some good ones for that price.
edit: i dont know any good sites to look at for UK, i just googled UK pc sites and i went to the first one that came up, but look for something like these, nice big comfortable headphones with padding for your ears with a nice flexible mic.