There's Abraham's unnamed head servant who goes praying to Aram Naharaim to find a wife for Isaac. He's praying to God "in his heart" when Rebekah comes out (v15, 45) and he discovers that she's the right woman. As soon as he learns this, he bowed down on the ground a praised God right where he was, so happy was he that God had provided for his master (v26). The servant's love and devotion to both God and Abraham and very evident and really exciting to read about.
Then there's the scene where Rebekah and Isaac meet (v62-67). Isaac is spending time with God, having his devotions in a field. Then he looks up and sees a caravan... and at the same time Rebekah looks up and they see each other. I have no doubt Isaac had been informed that he would have a wife soon, and Rebekah knew the entire time as well. "So she became his wife, and he loved her" (v67). This whole situation makes the whole arranged marriage thing pretty attractive, especially because God was putting the choice in God's hands (v7).
One more thing: Isaac was 40 when he married Rebekah. Single dudes (myself included), chill out. The time will come. Until then (and always, really) serve with prayer and dedication like Abraham's servant!