the end of Shawshank Redemption when Morgan Freeman is on the bus and he's talking, saying "I think it's the kind of feeling only a free man can feel..." and he ends with "I hope to see my friend and shake his hand, I hope the Pacific is as blue as it has been in my dreams.... I hope." Then when he walk on the beach and hugs Tim Robbins.. damn. Gives me shivers every time.

http://www.youtube.com/watch?v=Mh90Cc8mqoE
[youtube=425,350]Mh90Cc8mqoE[/youtube]

another is the scene in Love Actually when Colin Firth is asking Aurelia to marry him and the family is marching through town... the music is amazing too... and pretty much everything else in the movie is fantastic.
http://www.youtube.com/watch?v=AvHmtB8D4ZE
[youtube=425,350]AvHmtB8D4ZE[/youtube]