Kezza, listen to jacky. lol, I too had ghd ceramic straighteners .. wonderful!! but, after they conked out on me - which was only to be expected considering how muh I used them, I'm now using the wet to dry straighteners which are great too.
GHDs also come with a guarantee so if they have any problems you can send them back and they will get replaced.... so keep the box and there should be a little card with your guarantee in it..