Welcome.
These come to mind off hand, I'm sure there are others, but I haven't been keeping up...
BeBook Mini
BeBook Club
CyBook Gen 3
CyBook Opus
Pocketbook 301+
Problem is if you're thinking to save money by dropping things like WiFi and 3G you won't. These all cost about as much or more than a Kindle 3 3G+WiFi and also use the older Viziplex screen instead of Pearl (not a big deal for some).