You should check out/post in
https://www.mobileread.com/forums/forumdisplay.php?f=123
I recently got a Kindle and I love it. It doesn't do epub, but there are programs like Calibre that will convert your epub books to a format that the Kindle can read. I really suggest you go to a Best Buy and have a look. They have several different kinds of e-readers on display including the Nook and the Kindle. If you like the Nook Color, the regular Nook make be your best bet.