Welcome to MR and out of lurk mode, fooziex.
The below is some information that may be helpful if you haven't yet come across it in the forums.
MR has free ebooks that have been beautifully formatted by some very dedicated MR members.
ePub format and
Sony BBeB / lrf format <-- does the 600 still use this one?
Free ebook sites..
feedbooks.com and
manybooks.net
Free and for purchase ebooks ..
smashwords.com and
baen.com Plus Baen has a
free library
You can explore using
Calibre to manage your library of DRM free books and Kovid, the creator, frequents the forums here. We even have a dedicated
Calibre forum.
Here are a couple of book search engines for finding and comparing book prices..
AddAll,
eBookPrice.Info, and Inkmesh.
Have fun in the forums and ask if you have any questions.
PS Check my signature and click on the links to find more information.