I don't have a Nook either but I LOVE my kindle. I was weary about it for a while but once I got it I fell in love. The only problem I have with it is that I spend more money on books then I did before since it's so easy to just order them!!
My concern would be the availability and ease of downloading books to the Nook. I never looked into it but the Kindle is very easy.
i just got one last weekend and so far im loving it...very easy to use and in looking at kindles ebook prices it seems at first glance that barnes and noble are cheaper..
I have a nook and I love it! I got mine a few days ago and I haven't put it down! My friend (Dzneprincess) and I each have one. She lives in GA and I live OR and are forever talking about books we want the other to read. With the nook we have been able to e-lend to each other. I looked at others but the nook has everything I want. For me it was a bonus to be able to go to the store and try it out.