I have a Sony and I really like it. When I was researching them about a year ago, I narrowed it down to either a Kindle or a Sony. I decided the Kindle would be the best one if you intend to read more newspapers and magazines, and since I already had a lot of pdf ebooks, (and the Sony handles PDFs better than the Kindle, imo) the Sony won.
The clincher for me was when Sony teamed up with Google to make over a million out-of-copyright ebooks available for free in Sony Reader format, so theoretically I could read over a million books without spending another penny!

BTW, there are 2 Sony models available, I just got the basic one, but there's also a touch-screen version available.