Thank you all very much for your help.
Nate, you suggested that Cybook is better for the library ebooks..is that because Library ebooks are in Mobi format or does Cybook handle PDF's better..can Cybook handle DRM/protected PDF's? If it is because of the Mobi format than the Kindle should work well with Library ebooks.
I checked the Link to the NYC library and they have books both in PDF and Mobi format. Also the Los Angeles Public Library system has ebooks in PDF's.