Kevinmeath I'm surprised you haven't mentioned it but I'm sure you're aware of...
50,000 free E-books in various formats.
I just loves me some good old Gothic horror.
'And did you really have the three wishes granted? asked Mrs. White.'
'I did, said the sergeant-major, and his glass tapped against his strong teeth.'
'And has anybody else wished? persisted the old lady.'
'The first man had his three wishes. Yes, was the reply;
'I don't know what the first two were, but the third was for death. That's how I got the paw.'
Now regarding format conversion, again although I see no mention I'm sure you're familiar with Calibre
This thing will convert e-book formats from anything to anything and if you twiddle with it it will also remove DRM.
A virtual Mars Bar will be awarded to the first to name that story.