Try ED models on the Stratford road round the corner from the MEB building. Alternatively if you come off the Coventry Road by the big overhead lights at Sheldon (make the turn for Olton not Sheldon) drive up to the island go striaght across until you see a load of shops (its round the back of the Land Rover works) there is another model shop there. There is one in Rubery and another in Stetchford. If you don’t mind travelling through Wales for a couple of hours go to Aberystwyth there are a couple of fantastic model shops there also, up the road opposite the pier.