As I'm strongly leaning towards buying an enTourage eDGe myself and (overall) like the things they tell us about the device in the
eDGe subforum here I can only repeat aleks question: Have you considered the enTourage eDGe?
This video here is not one of the
presentations by the company itself and does show the handling and reaction of the device quite well.
Update: Just saw your post about annotations not being so important and the price-question. That taken into account it's probably not for you at the moment ...