Thanks all for your comments. I will not be able to buy from places that do not follow the UK voltage system as HK is a 200V, 50Hz AC voltage country. Please could someone also give me the retail prices in the US or Canada that the discounts of 20% are quoted off. I realised only yesterday inn my search that the retail prices differ significantly from country to country. The US retail prices I saw somewhere on the internet said US$12,500 per MC1.25KW and US$13,000 for the two-chassis C1100. I would like to close the purchase in the next 3 days.