[Northwoman]

I am trying to decide on an ereader. I have already started buying ebooks since some of the books I want are only are only available as ebooks. Plus I won a couple of ebooks as prizes. Someone mentioned Calibre to me to organize my books that I have already. Since I have been reading on my computer, I got most things as .pdfs so I could read there. These files went easily into Calibre, which will synch with either Nook or Kindle so that is all good.

My question is this. I have some things I purchased from Amazon, which I read on my computer in the Kindle Cloud reader. I can't figure out how to get those into Calibre to organize them, and if I did purchase a Nook, that is the only way to get those books to it, I think. Also, if I do purchase a Nook, can I still purchase books on Amazon?

I am leaning towards the Nook but I really prefer to purchase things on Amazon. I know this sounds crazy; it is making me crazy. It feels like my preferences have some incompatibilities.