My sister and her husband recently had a baby, and I was looking for some lullaby music that would help him go to sleep at night. What I found was beyond my wildest dreams...
I found this site: Rockabye Baby! Lullaby renditions of baby's favorite rock bands
They have taken the music that a lot of us love, and they've translated to music a a baby would enjoy. They've got Bjork, The Beatles, Radiohead, The Smiths, Metallica, The Pixies, The Cure and a whole slew of other great bands.
Here's some Coldplay to give you a taste:
Are you feeling tie-tie yet?
This would make a great gift for anyone in your life with a new baby--think family, friends, clients, etc. BTW--these CDs are also available at Amazon. (The prices at Amazon may be better.)