You can preview all the Nacho Libre OST Tracks here:
*www.mp3stor.com/albums/83/438/69580/soundtrack/nacho_libre/
And all The Graduate OST Tracks here:
*www.mp3.com/albums/14545/summary.html
[Am not sure of the latter's preview page, cause the entire album seems to be by the famous Simon and Garfunkel duo .. But I guess old times were like that?]