If Republicans won all the contested seats in 2014 (obviously not gonna happen) they would still be short of a 2/3 majority if my math is correct. (assuming the two indys continue to vote Dem)
Conservatives can possibly come in Republican and Democratic flavors. That is why I'm careful not to specify political parties. In fact, I think that some Democrats will vote whichever way the wind is blowing if patriots and former Obama supporters vote conservatively.