Why not try
www.expedia.co.uk there is "room only" on here and I imagine more folks on here will be able to read it being the English site rather than the German one, though it will be in British Pounds rather than Euros.
I would advise any Americans to always check the UK versions of the hotel sites before booking at WDW as well, I tend to check both the American and English whenever making cash reservations this inludes both disney.co.uk as well as disney.com, expedia, opodo etc. Sometimes the UK sites have some cracking deals. Last year I managed to get a weekend in the Poly off disney.co.uk at a massive discount to the price on disney.com
Also if you have relatives in the UK and you are only going for one trip per year consider getting the uk and Ireland only 14 or 21 day Ultimate tickets rather than an annual pass, they are quite a bit cheaper even with the DVC discount on annual passes. Disney wont post UK passes to the US or Canada but it may be possible to get them through one of the ticket agencies based in the UK that do the printed tickets that are converted to a proper ticket at the on site ticket offices.
Plenty of info on the UK DVC board of decent companies to buy them from in the UK and their web site addresses.