So I took a few screenshots to set up as my background spanning my three monitors. I figured I'd share. They aren't 100% the full size of the monitors, because it was incorporating the window bar, but it's not too shabby. I just put like a 10 pixel black border around the image and centered it. Looks pretty legit.
Since the images are 10mb a pop, we uploaded 'em to Kitty's Flickr account. You'll have to make sure you look at the full size/real size image, or whatever, if you're going to save it.
http://www.flickr.com/photos/kamui4u/9580490928/http://www.flickr.com/photos/kamui4u/9577704107/http://www.flickr.com/photos/kamui4u/9577704493/