I have a Nook, have had it since January 2010. Couldn't be happier. It does not get hot. If you get a nice cover, it really feels much like holding a regular book.
As for liking to know how far along in the book you are, the Nook has a status bar at the bottom, as well as which page, out of how many pages in the book you are on.
I believe the Kindle does the same with the pages, but instead of a status bar, shows the percentage of how far along you are.
I always did like seeing how much of the book I've been through before, and was worried I'd miss that. But now I just always check how many pages I'm in. So at least for me, I've just kind of use a new indictator, and get the same results.
I've actually done so much more reading since I got it, than I ever did before. And with Barnes and Noble, then send out a weekly email with book suggestions, NY Times Best Sellers, bargain books, etc., They also have a free Friday book every week. So I've found / read books I normally wouldn't have paid much attention to.