Holiday Desktop Themes at Wulfert.com - Archive index of links to themes in categories of Halloween, Thanksgiving, Christmas, Valentine, St Patrick's, Easter, and Miscellanies Holidays. - http://wulfert.ezthemes.com/pcenhance/dt/main.phtml?blank+Holidays
DesktopDecor Holiday Desktop Themes - Choose from Valentine's Day, Easter, Thanksgiving, or Christmas theme categories. Holiday screensavers and wallpaper also available for download. - http://www.desktopdecor.net/holiday.html
ThemeCloud9 - Seasonal themes for the Holidays. Click on Seasonal link on the left hand frame. - http://www.themecloud9.com/
Kenja's Desktop Themes - Holidays - Holiday Desktop Themes for Win95/98/NT with reviews and preview pictures. Includes themes for Valentine's Day, St. Patrick's Day, Easter, Halloween, and Thanksgiving. - http://kenja.net/themes/holidays/