In reply to RockAngel: Do you have a good credit rating? Have you just moved into a new place? Chances are that you will not be accepted by these places. Have you thought about using a credit card? There are lots of options to choose from so shop around. This also means you can shop around for the best deal on a washing machine (Comet for example are sometimes up to 20%-30% more expensive on the same model than other suppliers)
It is worth pointing out that 0% APR adverts usually only advertise headline rates and I think to become a headline rate, only 1/3rd or so of applicants have to be approved which means that most people don't get the headline rate so be aware.
Good luck!