In my post below I detail the issues I had with just one brake locking up gradually until it is almost entirely stuck - this after about 30 minutes of normal driving. I have spoken to a garage up north (recommended by a relative) and the chap there reckons that just one brake doing this after a bit of driving and then releasing after it cools is very symptomatic of a defective flexible pipe at the wheel. Before I spend any more money I wonder what you guys think. I have a nice quote from Any Car and I have declared the brake issue, but I might have one more go at a repair if possible.