Need a particular song or arrangement? Checkout www.sheetmusicplus.com, (opens new page) they have one of the largest selections of music books and sheet music available anywhere. Their site also has good search facilities to find what you want, AND include content indexes for most their music books.
But I Do-You Know I Do
But Not for Me
Butterflies in the Rain
Stanley Damerell, Robert Hargreaves, Sherman Myers