Guys,
Was in Dublin yesterday picking up a few things in Mark's Models and I happened to pop across to Banba Toymaster on Jervis street (they have quite a large selection of Hornby stuff). While I was there I noticed they were selling the bog-standard Hornby decoder; R8429, for €25. Bit pricey thought I! Sure enough I went into Hamley's in Dundrum that afternoon and they are selling the same decoder for €15! You can even pick up the Sapphire from them for €30...
I know that some shops are a law unto themselves but I think a tenner in the difference is a bit rich!