[hsiafreak]

I am in the market for a 1st e reader. After reading as much as I can find online and then pounding my head on a coffee table to try and clear up my confusion, I think I have decided on the Irex DR800SG. My decision is based mostly on the size of the screen for my poor old eyes, but also partly so as to be able to buy content from more than one source.
Here is my dilemma. I have installed both Kindle for PC and Barnes & Noble Desktop Reader on my laptop to compare the content from both sources. I have downloaded samples of several books from both and for whatever reason, they are not formatted the same. I am talking about copies of the same books.
The Barnes & Noble editions have more paragraphs than the Kindle books. Or to put it differently, they have taken what is one paragraph on Kindle and broken it into several paragraphs which are really just sentences in the original text. Is this any different on the Nook or Irex?
My question is this, are Barnes & Noble taking liberties with all the material they sell, and if so is there another source I should be looking at for content, or should I just reassess my choice and consider the Kindle DX even though that ties me to Amazon for my purchases?

I guess there is one other option because I don't seem to suffer from eye strain reading from a PC as long as I adjust the brightness, I could just wait for an Ipad which would give me the size I want plus be multifunctional to boot.

Thanks in advance.

PS: The reason I can't just go to a store and look for myself is that I live in Canada and the only devices I can find in stock are the Sony products and I'm not impressed with them at all.