Manic monday sales at halfords online, the link above is for everything that's in there sale. Bare in mind this is today only and i think there is roughly only 8hours left. I think you have to reserve them instore for collection don't think you can just go instore and buy one not sure.
Some bargains, if it wasnt for me going and buying a mtb the other week i would be buying the carrera now. Good spec for the money and decent reviews. Still tempted to buy one to keep as a spare.