Thank you, for your prompt, and very informative, responses. I think I have decided on the Kindle
Keyboard 3G, Free 3G + Wi-Fi.
I feel I'm too fumble-fingered for the touch keyboard. Sometimes when I haven't cut my nails in a while, I get a little sloppy. No, I'm not one of those creepy women who have talons

. I'm too lazy for the upkeep. And, you have confirmed that the touch screen will probably be easily smudged.
I hadn't thought of the difference between the LED and the eInk screens, and am
really glad you steered me away from the Fire. I don't need to have my favorite relaxation activity

, cause me headaches, when I get those from too many other sources.
Although it is a bit longer than the Touch (which was the same size as my Sony), I don't think that will be much of a 'burden.'
I know I said I didn't care much about the 'wireless/3G' thing; but, someday I may have a use for it, and the Touch didn't have the 3G option (I was out today with my sister, and she got all turned around because she'd left her TomTom at home. LOL. Can you get MapQuest on the Kindle?)
Again, thanks soooo much for your help. I only hope the delivery of my new Kindle will be as prompt as your responses were.
PS. I have been using Calibre since I first got my Sony. Kovid Goyal is a genius, and I've donated at least twice (probably am due again.) I don't even use the Sony program, except to order books.