Many people have been able to find less expensive (and leather-free) options for reader covers for different devices. I got an inexpensive day planner and removed the notebook part, and my iLiad fits inside nearly perfectly. This is easier to do after you have the device, because you can take it to the store and try it out, but you could make a mock-up of cardboard based on the published dimensions. At least the Bookeen devices are square.
