Yeah, I just figured MY issue out. Not sure if it was the same as the other guys, but mine is tad embarassing (A little less embarrassing considering 3 people at VZW didn't catch it either).  Thanks to the quoted text above I looked in Battery Saver.  Mine was set properly; however, when in the menu I notice the Data Delivery option.  What do you know, within that menu is a check box for 'Data enabled'.  Never been in that menu before, but mine was unchecked.  Checked it, and now I have 3g again.  Hope this helps someone out there.  Wish VZW trained their techs (phone and stores) to look in that menu too!  I made sure to tell the phone tech how I fixed it so they could have it documented in case another idiot like me called in w/ that problem.