eInk Kindle is the way to go. Mind you, I don't think eInk is perfect. I think the background (the "page") is too dark. Unless you are in good lighting, it's much darker than a real book. With good lighting it's not a problem. Still, in spite of that, eInk is absolutely what you want for an e-reader. It's easier on the eyes and is not only readable outside in bright light, but is even better in such bright light.
I have the $79 Kindle, and it's great, but I recommend getting a good case for it. In part because it makes it more comfortable to hold. Amazon's custom case for it should be great. I have their lighted case, which I can mostly recommend, except that I'm not really entirely thrilled with the light itself, though it is uber convenient.