I picked up a 110V sander cheap but luckily I have a 240-110V transformer for use on building sites and the like. You can probably pick one up cheap and then it's just a case of adding a yellow 110v plug
something like this - http://cgi.ebay.co.uk/110-VOLT-TRANSFORMER...%3A1|240%3A1318
if you get one iof these then you can keep your eye out for nice cheap industrial quality tools