this was a while back, but somehow the halfords trade system discounts calipers massively, well it did for my RS, i ended up with a pair of recon fronts for 30quid each, and that was without even havin to exchange

most halfords wnt do calipers now, but sum will, so might be worth a mooch if u kno somebody with a trade card

bout the only thing id be recommending halfords for though dnt worry