Hi Edwin and welcome to MR.
To help you with the decision, check out the forum '
which one should I buy' which also has a
comparison matrix in the wiki.
For books check out the
eBook library from MR. Sooooo many free books, lovingly formatted by MR members. That'll keep you reading for a while.
And if you have any questions regarding any of the readers you are considering, post them in the relevant subforum. MR members are more than willing to give you advice