Welcome to MR, Julie. You do have a big decision to make. At least you know a couple of people that you can ask specific questions about the two devices that you are considering.
As mentioned, check out "
Which one should I buy?", the various specific forums for each device
(
Amazon Kindle /
Barnes & Noble nook), check out the other device forums, and check the
MR Wiki with
The famous eBook Reader Matrix.
Here are a few ways to find your posts again: