Mine’s the wallpaper from the Haunted Mansion (from the hallway with all of the knocking doors)–so it’s a bunch of evil faces and eyes.
Hm, how to describe it… well, basically, “How to Tie Yourself Up in Eight Easy Steps”.
My cat. She’s black and white, and incredibly photogenic. I took the picture with my digital camera a day or two after I got it, and I just loved how detailed the fur was, and the look in her face is so calm and pretty! I have sent the picture to the local SPCA to be added to the calendar for 2005 - I hope they include it!
Now, seriously, what do you think I’d have as wallpaper? Seriously?
Yosemite National Park, of course! Both Mac and PC have Yosemite wallpaper.
Though my old PC has Stargate SG-1 wallpaper. Just for variety. 
One of Monet’s waterlilies.
Shot of the WTC, pre 9-11, taken from street level.
Cheryl Hines looking quite munchable.
Currently, a pretty cool promo shot of the entire cast of Firefly.
Awesome shot, but I’m a little too lazy to upload to my server and link to it now.
If anyone’s interested, send me an email (see profile) and I’ll throw it on the web.
-P
A picture of the New York skyline (post-9/11) with a cloud of smoke billowing behind the Statue of Liberty.
I think I should be changing that soon. Or not.
A zoom in of the edge of Garfield’s face after undergoing several random changes through photoshop. Looks pretty cool.
Man, I looooooove me some Digital Blasphemy. I’ve had fractals from there many times. Right now I’ve just got the Maldives from ThemeXP.
I change mine fairly frequently and for the last month or so I have been using mimi.
A close-up of a squirrel peering straight into the camera. He’s so cuuuute!
I spose I just don’t understand the wallpaper thing. To me it makes the desktop hard to read. Can anyone tell me why they dont just have a flat old background?
I use a digital photo of the view from my nephew’s front yard.
–SSgtBaloo
Currently, Kinoko from Oni kickin’ ass.
Ask again in a half-hour.
Same here - The Orion Nebula
Tom Keifer of Cinderella.