A real quicky for you all….
MS has some wonderful themepacks for the holidays. The wallpapers are stunning examples of what folks who have photographic talent can do.
If you don’t want the theme, and only want the walls (in 1920 x 1200 res) you can use the free 7-zip utility (download here: http://free7zip.com/) to unzip the theme to the wallpapers and theme separately and save the walls to a different location as I explained in this article:
http://drjbhl.joeuser.com/article/412237/How_to_preview_the_Walls_in_MS_Themepacks_and_extract_them
So… take what you want here:
http://blogs.windows.com/windows/b/windowsexperience/archive/2012/11/19/holiday-goodies-for-your-windows-desktop.aspx
MS was nice enough to let you inspect the walls before downloading.
Also, you can improve the walls (as I did below) in Photoshop by simply adding a Vibrancy Adjustment Layer and saving the result as a jpeg.
Original:
After Vibrancy adjustment layer: