Pretty much everyone has been mentioned so far, but another incredible arm from the modern game was Mark Whiten. Cardinals and Indians, maybe a few others.
His throws from Right Field to Third were incredible... in that they really did not lose much altitude from one point to the other. When sitting in the box seats, especially on the first base side, his arm was something to behold.
Certianly not in Clemete, or Ichiro's league, but worth a mention.
"Herman Franks to Sal Yvars to Bobby Thomson. Ralph Branca to Bobby Thomson to Helen Rita... cue Russ Hodges."