I have to mention something about a case, cause I'm kind of jealous it probably won't be made for my 950 anytime soon. It looks like Noreve will be selling a case for the 650 at some point. There's a link on their front page under "Stay posted on the availability of upcoming products,"
http://www.noreve.com/product/Housse...Tradition.html
These are really nice cases, I got one for my boyfriend's nook. The leather is some of the nicest I've come across. They use a rail system to hold the reader, which is both very secure and unobtrusive. It keeps them small, too, not much larger than the reader itself. The covers are pricey, though it's not quite as bad as it looks at first glance if you're in the US (the prices include VAT, which US folks don't pay), and depends on the current exchange rate. There are some coupons floating around that help a bit, and they occasionally put things on sale. The other downside is that anything but standard black takes about a month to arrive. Worth it, though.