i have a nook (not color) that i got at Christmas and I really like it. It has the capability to download from sites other than Barnes and Noble, though I haven't used that feature yet. Barnes and Noble has quite a few free downloads. It has a touch screen at the bottom, which I like. It downloads wirelessly from the Barnes and Noble site if you have access to a wireless network, which we do in our house for the laptop. It also has soemthing like 7 different text sizes to choose from.
My MIL has the Sony Pocket Reader, and I don't like it nearly as well. No wireless capability and no touchpad.