Initially I was put off purchasing from America because of the voltage difference, so I decided to ring 'Brother' who make a selection of electric drum carders, and ask whether they manufactured a carder for the UK market. They assured me their carders could be set up for the UK from their factory, and that I would not need a transformer.
Next hurdle was the import duty and tax. It was a little tricky working out exactly what that would be, and I have to say, it wasn't cheap to import. But, over-all I spent less and got more spec on the carder by buying from America, even with the added import costs, than if I had bought within the UK.
I chose Brother's 17" electric carder. It's hard to visualise until it's in front of you, but lets just say it's a large machine and I can get through a lot of fibre in a short space of time with it.
In my new Youtube review I've tried to cover everything I can think of about this carder. I hope it helps if you are contemplating buying one yourself.