I recently scrapped my Hornby turntable and bought from Walthers in the USA an Atlas Turntable and motorised drive. The turntable is only 9" so I had to adapt it to 11.75". I used a piece of Hornby track cut to 11.75" and a length of sleepers the same size.These were stuck on to the turntable and the sides fitted with plastic latice from my model shop. I then mounted the turntable by cutting the baseboard out and thus achieving an almost flush transfer. The turntable is very accurate and can have 21 positions which need wiring up as per the instructions. I had a problem with the motor which belt drives the turntable and contacted Walthers about it and they sent me a replacement free of charge. Their customer service is excellent and a standard that ought to be matched elsewhere.The total cost of the turntable was £47 including postage from the USA and Walthers have been extremely helpful with my problems. They do not want the old motor drive back as the belt alignment was faulty so I now have a few spares too for the price. I have used 9 positions so far but space prevents me from building a full roundhouse but the space the turntable has given me on my layout is very usefull.