OK guys thanks for the info..... I think the first thing to do is eliminate the possibility of it being the discs before I go any further

JANO - The discs (and pads and calipers) were bought second hand from Steve@RSX off here having covered minimal mileage.

NutsRS - Not sure what you mean by which side as its just transmitted through the steering wheel/car

I'll have the brakes/discs checked over the weekend and re-post