Spotted that Office had a sale of MBT shoes in the store in Windsor today. Don't know if it's national but can only assume it is. They don't seem to have them online though.
These normally sell at £135 and they had them for £65. I have been looking for these for ages at a cheaper than retail price and you can never find them!
Got myself a pair and am very pleased! I do have very achey calf muscles though! For those of you that don't know what they are there's some info here http://www.mbt4fitnessandposture.co.uk/walk.php