I have been using a Nokia 770 Internet Tablet as an ebook reader for about 4 years. It is backlit, rechargable, plays movies, music, connects to the internet, attaches to a computer via USB or bluetooth. The software I use is FBReader. While the device is a touch screen, I scroll through the pages and do virtually all ebook tasks via the buttons. It has a hard case that it slides out of. I prefer this model to later versions because I think the navigation buttons work better.
I am a consummate klutz. It falls off the bed, gets slept on, gets thrown in my purse, gets played with by my 4 year old and it is still going strong. I’ve never even had to replace the battery (which, by the way, is a common cell phone battery that can be had for about $5)
It is technically obsolete, however, it is gettable on ebay http://shop.ebay.com/?_from=R40&_trksid=m38&_nkw=nokia+770&_sacat=See-All-Categories
I paid about $135 for it several years ago, and it is holding its value very well it seems from my quick ebay search. It still seems to go for ~$99-125.
While I am the target demographic for ebook readers, I have yet to find a dedicated ebook reader better than the Nokia 770. I use it every day and have used it every day. I will warn you, it is Linux based, so there is a bit of a learning curve, but get FBReader installed and you’ll never know you are in a different OS.
BTW, It reads most formats, including PDF, although I prefer to convert those and Lit files over to straight text.
You can adjust the alignment, brightness, text size, text color, etc. I turn the text sideways on the screen and use the rocker button to turn the pages. I’m so spoiled by it, I rarely read real books anymore and can’t see that Kindle compares. You see, I like to read in bed. My husband hates night lights. I can fall asleep reading and it keeps my place, it powers off and I don’t have to have an auxiliary light.
I love my Nokia 770.