Mr Grubby:
Many thanks for your encouragement and the offer to put me in touch with your publisher. As you say, it costs a fair bit to publish a few copies. I had an old friend (now departed) who spent around £6,000 having his career (in two books) published. (That covered about a total of 60 books as far as I can remember).
I am lucky to have a copy of both, I am pleased to say.
When I said that I was considering self-publishing I meant that I was toying with the idea of using MS Publisher (or a similar programme) and doing it myself.
The other idea is to put it all on a DVD. At the moment, I favour this idea for it really would be much easier all round. One of the great advantages is that I could incorporate lots of colour photographs and size would not be so much of a problem.
It also means that I can run off copies very easily - as many as I want for the cost of a blank DVD.
Anyway, what I need now is time!