Following-up my own post, which is not always a wise move, but after
catching up with some post-xmas news, I find the ofllowing:

http://www.theregister.co.uk/2004/12/29/sub-500_imac/

So it looks like for under $500 there may well be a pre-built system
ready to go... (Although it's probably take Apple another year to get
to the UK market and then the $ will change to a £ without any form of
monerary conversion taking place )-:

Gordon