Cover for a Kindle

Much to Amazon's credit, they emailed me a couple of weeks ago with instructions about what to if my Kindle DX had cracked because of the hard cover I'd bought for it.  It had indeed, because the hinges on the cover somehow force open the case if you accidentally open it from the back.  I was impressed that Amazon sent me a new Kindle right away and refunded the money I'd spent on the cover.

But now that I have a nice, new Kindle again, I'm back to square one.  What kind of cover should I get? It looks like Amazon hasn't changed their leather cover design (the one with the hinges), so I could easily damage my device again if I re-purchase the same thing.  Has anybody out there bought a zip-type Kindle case?  Are you happy with it?  I'll post your remarks here, if that's okay....I need suggestions!