QUOTE Also, does anyone know of any Hornby or Bachmann models which cant take a standard DCC chip within the body? Due to the costs of the 'micro' size chips, Im not keen to use less than the standard size/function chips. While you can put any decoder in any loco, some are better suited to certain motor types than others. Some of the tender drive Hornby locos don't go too well with budget decoders. I have been advised to use at least Lenz silvers or I believe someone mentioned a Zimo decoder on one thread which was meant to be ideal. More recent models don't seem to have many problems with cheaper deocders it's just that the performance could be improved with a better one. I had a lot of bad experiences with cheap decoders so don't waste my time with them anymore. Try a couple of different decoders, some cheap and some better quality, and make the choice for yourself based upon the performance they give and your requirements.