Hi. I've been registered here from the beginning but haven't visited as much in recent months. I'm a long-time Kindle owner and have been using the Cybook Opus for epub library books. I've thought about buying a wi-fi Nook since they introduced the lower-priced wi-fi model but couldn't justify it to myself . . . until today.
Someone on KBoards said they had their new nook in a K2 Oberon cover. That pushed me over the edge to try that out in a B&N store today. (I have two K2-sized Oberon covers.) It's not a perfect fit, but it works, even with the Oberon "shake" test. I bought the Nook and found it pretty easy to set up with my B&N account and home wi-fi network.