[quintanion]

I've had a Sony PRS-600 (touch) e-reader for the past two years. I love the portability and function of having an e-reader, but that model definitely has issues with glare on the touch screen and I'm hoping to replace it with something that is easier to view in various lighting. Mine is almost unreadable by bedside lamp or other low light source due to the glare. Otherwise it was perfect for my needs. I'd love some advice on the best replacement option.

I really only need something to read books on - 3G, color, etc are not necessary, but I do like the touch screen for maximizing the usable space. Kindle is not an option because I have purchased most of my books in epub format and also utilize epub loans from my local library. Any recommendations between Nook Touch, the newer Sony model, or Kobo touch? Any other options I'm forgetting? I'm mostly concerned about screen/image quality and ease of use. Have the newer Sony's fixed the issues with glare, and are there significant differences between different brands of touch screen e-readers?

Thanks for any input you have!