SDG,
That is all good info, very many thanks for writing all up for me - I will refer back to it closer to my departure and use it to help me make my plans/bookings. Good advice too about the Orkneys - if time permitted I'd love to cycle the Shetlands too, but I can't do it all on my first trip! Nothing to stop me making a second trip though ;-)
As for the distillerys I'm afraid whiskey isn't my thing, well I wouldn't really know, but I don't think it is.
Give me a nice cold coke after a ride on a hot day and I'm more than happy.
Tony