Don, if you're looking for anything other than an e-reader, I'd nix e-ink if you can handle reading on a backlit screen. I love my N7, and would choose it over the Fire as you can download from both the Play Store and the Kindle Store. Easy to root and mod, but with stock Jelly Bean, it's just great.
Amazon is supposedly announcing a new series of Fires soon, so if you're bent on one, I would wait.
If an e-ink device is just what you want, I think the Nook Simple Touch with Glow Light is one of the best out there. The Verge loved it:
Video: Nook Simple Touch with GlowLight review | The Verge