Nook vs. Kindle? Amazon vs. BN?

So I have finally decided to make the plunge into an ebook reader. I'm debating with this whole nook vs. kindle decision. Realistically, I prefer open devices, so the Nook will be the way to go. But, I have no experience with Barnes and Nobles' [online] bookstore. Here's a few things that I'm wondering: - How do the prices b/w the two stores compare in general? - I love highlighting and taking notes in books I read, can I easily export the info from the Nook? I saw some ways to do it in the Kindle, but I don't care for the Amazon here's-what-the-rest-of-the-population-highlighted-too idea. Too big brother for me...nor do I care what the rest of the world thinks. - Per Google's recent announcement, will I be able to download/buy their ebooks as well on both of the devices? Keep in mind that I will primarily use this for reading books. Unlikely to deal with games, surfing the web or pdf uploads. Thanks for the help!