Hi Jo,
You had asked about an e-reader with print and voice over. An ipad or ipad mini will do that for you. There are simple e-readers out there, but I don't know if they have voice over. I checked at Barnes and Noble the other day and they were unaware if a nook would do that. I can never find a phone # for Amazon, and haven't had time to check out whether their e-readers have voice over or not.
If you have books already on your computer, they can be synced to your ipad or other reader. You plug your ipad into your imac, go into itunes (or if you don't have it, you can download the latest itunes for free.) Any or all of you books can then be sent to your ipad and you can read them there with VoiceOver enabled. However, I'm not sure if there's voice over for other readers.
VoiceOver will help with so many other things that are explained in the link I gave you earlier.
If you download one of your regular books that is not an audio book, to a cd, it will not help, as they will only play music. If they are audio books, they might play.
Many readers are more than simple readers. They started out small and many are now selling models closer in size to the ipad. (Meanwhile, Apple brought out the ipad mini, though if vision is a problem for you and you need to enlarge the size of the print, you won't get a lot on one page. I know I would find that frustrating.
I have been looking into this subject. We are buying my father-in law an ipad for his 91st birthday in two weeks. He had unsuccessful surgery for a detached retina a couple of years ago and so has vision in only one eye. When we were researching how and if he'd benefit from an ipad we weren't sure, but then I read about VoiceOver and we're all very excited about it. The thing is, too, with an ipad and some e-readers you can do a lot more. His mind is intact. He'll be able to read newspapers, books, etc., There are many games/apps that he'll buy that can exercise his brain. Some months ago there was a thread that went on and on about how nurses/family membes who were finding that their senior parents/patients (some with Alheimer's) became more alert when working with someone on the ipad. It was encouraging. IF you have netflix you can watch movies on it. Your music might be on your computers from cd's. If you have music cd's at home, you can quiclky upload them to your computer, put them in itunes, and sync them to your ipad, too.
If you are out a lot, maybe a smaller one would work for you. If I were you, I would go to an Apple or a store like Best Buy and try them all out. The big stores will have many brands. Also, google 'user reviews' of the various types of readers out there. That might help.
Just an fyi - Last year our sons wanted to get an e-reader for their dad for Christmas. I encouraged an ipad. He said he only wanted a $79.00 e-reader to read books - nothing else. Like you are saying, he thought it would be a waste of money. I finally talked him into it. He has used it pretty much every night since he got it for many things. And the kick is, he still has not downloaded a single ibook!!! He's found so many things he can do on it, and loves it! (He spends a good part of his days on finance related computers and has never borrowed my imac or our sons' laptops for anything, but he loves this Apple refurb store ipad2.
While you use your imac when you want, you might appreciate that you can use it while you watch tv from the comfort of your living room chair, or read your newspaper while eating breakfast. You can e-mail on it. You can listen to music while you watch tv (yes, many do that.) I'm not trying to push one particular reader at you, but I do suggest that you learn about all the many things you can do with an ipad or other reader before you decide. The Apple website will be helpful, as will this support site.
I don't know how old your grandchildren are or where they are, but perhaps they can show you how much it can do that, like my husband, you are not yet aware of.
If I find out anything else, I'll be happy to get back to you!
Decisions! Decisions!