You can get loads on Ebay - even NOS - remember the H & M ones are the better ones to get, but they go for a premium price..You can get a load of Pre-used ones either singually of in bulk lots, best deal I have had so far was 35 decoaders for £6.99 inc Postage :) :) Upon Testing there was only 1 faulty decoader amnog them.But I have loads of Zero 1 Items as I have them on Pernament Search on Ebay. As I know getting parts is almost impossible, so if an item goes faulty - I reemove teh faulty item and thro it awy if it cant be repaired, and grab another one :) :) But bewarned - some sellers seem to think Zro 1 items are worth lots of money ! and you will see them re-listed again and again, until they catch someone who dont know what they are buying !!!I am so far into Zero 1 and it does everything I need and want, That altho I have looked into changing to DCC I just can not justify the expense.Even Now I find some documentaion, that I dont have, and often not a month goes buy, when I dont learn anything :) :)