Originally Posted by nairbv
and so, ... when I do convert, in terms of destination formats... is mobi/prc probably going to be the best / most convenient single-file format to store my books in?
Mobi is my preferred format, because it's supported on so many different devices. I don't know what I'll be reading my eBooks on in 5 years time, but I'm confident that I'll be able to get a device which supports the Mobi format then.
That's my preferred reading
format. In terms of a long-term storage
format I'd choose something like RTF or HTML.