Couple of interesting things on the name:
1. St. Malachi's prophecy of "Glory of the Olives" (he Benedictine's are also known as Olivetians )?
2. St. Benedict prophecy that the last Pope would be a "Benedictine."
The name has, for me, connotations of the story of Benedict, namely for the caves.
The Catholic Encyclopedia has a nice little biography. Choice quotes:
Supposedly, on EWTN they were expecting him to take the name Boniface.
What in the world prompted him to take Benedict?