Ooh, I always love this thread every year.
Here's some of mine...
Casting Crowns - Peach on Earth
Christmas with the Rat Pack
Harry Connick Jr. - When My Heart Finds Christmas
Kenny Rogers - Christmas Greetings (this one is so old, I had it on 8-track!, but I still LOVE it!)
Sarah McLachlan - Wintersong (so gorgeous!)
Trans-Siberian Orchestra - Christmas Eve and Other Stories