Congratulations and what a great wife you have!!
I've had the Sony 505 for over a year and love it. I use to load it full of books but found that it was too many to choose from. Now, I only load about 30 -40 books. If, I read a book a day, it would take me over a month before it was time to reload. That seems to work for me.
My mom does read a book a day, so I load hers every two months with about 100 books and she is happy.
I've found that I don't even use the card to store books for either of us .. so it really was something that we didn't need, as there is computer access for her Reader at least every two months for adding new books.
Check out MR's ebooks that have been beautifully handcrafted by some very dedicated MR members.
ePub format and
Sony BBeB / lrf format
Plus these free ebook sites..
feedbooks.com and
manybooks.net
Free and for purchase ebooks ..
smashwords.com and
baen.com Plus Baen has a
free library
And
fictionwise multiformat ebooks.
Calibre is great to manage your library of DRM free books. and Kovid, the creator, frequents the forums here. We even have a dedicated
Calibre forum.
Enjoy your new Sony, 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.