That Sony cover has a bad review and there's a thread just below this one where a person is complaining about it. :/
I saw Oberon covers... They don't make them for 650 so people buy something else and then attach the reader by themselves. I'm not interested in that and they're really expensive too, so those were off right away.
Argh. I think it might be best if I waited to get the reader and then saw how I'm gonna use it and see all those buttons and then try to see some covers IRL. I'm just worried I won't find any.