Here is the track listing for the UK radio XFM comp put out on Jeepster Records a few years back:
Alan Parsons in a Winter Wonderland-Grandaddy
Little Drummer Boy-Dandy Warhols
Every Day is Christmas-Webb Bros
Everything's Gonna Be Cool This Christmas-EELS
Feliz Navidad-El Vez
Christmas in Waikiki-Morgan
Maybe at Christmas Time-Drugstore
O Come,O Come Emmanuel-Belle and Sebastian
Thank You Dreaded Black Ice,thank You-Giant Sand
White Christmas (demo for Tom Waits)-Flaming Lips
My Christmas Prayer-Saint Etienne
Christmas Downer-Departure Lounge
I Believe in Father Christmas-Six by Seven
When I Get Home for Christmas-Snow Patrol
Spiritual Guidance-Titan
Christmas Boogaloo-Big Boss Man
Christmas Eve-Teenage Fanclub
Gift X-change-Calexico
Hwiangerdd Mair-Gorky's Zygotic Mynci
Just Like Christmas-Low
In the Bleak Midwinter-Lauren Laverne

Also Rich Aritmetic's Optional Art label put out Cool Yule which also had some great songs on it.
-r