Focus all efforts on it? IF the 17th was repealed, all other reform efforst would fall into place: judges, taxes, abortion, etc.
Since this is such an important amendment that needs repealed, instead of talking about this, why not DO something about it? Here is a link that should take you to the Congress.org website. Use the congressional directory and contact your US Representative and tell them you want it repealed. We gotta start somewhere.
http://www.congress.org/congressorg/dbq/officials/directory/directory.dbq?command=congdir