Your actor is going to be about 75% of the success of this thing.  15% will be mic placement and positioning.  The rest is compression and eq.

actor -> 416 positioned pointing down at a 40 degree or so angle aimed at the sternum -> compress moderately to heavily in post (fast attack, high ratio) -> add some high end -> done.

Here's some reading over on gearslutz to get you rolling:

[VO mic choices][3]

[VO mic positioning][1]

[VO compression][2]



  [1]: http://www.gearslutz.com/board/post-production-forum/421580-mic-positioning-v-o.html
  [2]: http://www.gearslutz.com/board/post-production-forum/418925-compression-voice-over.html
  [3]: http://www.gearslutz.com/board/post-production-forum/176732-sennheiser-416-neumann-u87-vo.html