So it sounds like all the options are decent choices? I'm not worried about storing the light with the reader/case. I'd rather have a case that provides some protection and a light that can attach to the case while reading...
The bookarmor I was looking at
This and
This mighty bright are looking mighty attractive, but the light is what concerns me, will it provide enough 'lume from the side or it a top mounter? I've looked at the flex lights but the clip base concerns me, I've had bad luck with those pressure clips breaking
Then again the Sony case doesn't look bad but never having seen one its hard to judge it