UK replacement power suply for the Theremax kit

I am considering buying a Theremax kit from PAiA. Does anyone know where I could get a UK wall mount power supply to replace the US 120v one?

Old post so I imagine you got a PSU by now but just for the record:

paia say 12vdc wall mount power supply (100mA or more)

http://www.maplin.co.uk/Module.aspx?ModuleNo=13453&criteria=Unregulated%20Mains%20Adaptors&doy=11m4
Maplin GS75S would do I think.

or
RS
Part No.: 8311000214

There's loads of 'em on ebay too.