Pops, what you might be unaware of is that here in the UK we now use a common European ("JAR-FCL") licence and there are a bunch of schools in the US (mostly in California or Florida) who train for the European license.
As it happens however, UK CAA will accept for day-VFR flying only any ICAO PPL, so the Canadian one would do for that. But I think the cheapest ICAO licence to get at present is the South African one, although personally the idea of practicing PFLs over the Kruger national park isn't all that appealing !
However, EH8 has said he's looking for a commercial licence, and I think the US is the only place outside Europe with schools approved for that training - UK CAA won't accept any non-European CPL, and gives very little training or exam credit for the holder of a foreign CPL wishing to convert.
G