Thanks Chris, a great help.
I've looked on TCB and find the genuine shocks more expensive than the KYB, which is to be expected, however reading your message i concluded the KYB was a "mild upgrade" and as such, expected a higher price than the originals. There isn't any "shock" rating shown in their description so i'll drop them a mail.
One other thing. I notice they have;
Set of Tein S-Tech Lowering Springs (approx 37mm lowering) - Spring Rates FR 241 lb, RR 207 lb.
37mm seems like a lot to drop the car (see image in original post) so perhaps i should stick to a set of originals?
Thanks again.