Today show did another piece on DBS surgery - 7/10/2013

http://www.today.com/health/actor-has-brain-surgery-while-awake-strumming-guitar-6C10587302

The above link will take you to the Today Show website where there is a great video about an actor that just had the surgery done.   Great story!!!!!

http://www.drugs.com/news/new-guidelines-issued-common-tremor-disorder-34341.html

Found another article from 2011 that talks about the new guidelines set in October of that year for treatment of ET.   This article names several different medications that may be used for treatment.