Just thought it would be nice to share a little with the community.
First, if you're looking for some premade wallpaper, http://www.dualmonitorbackgrounds.com/ has some nice stuff.
The res I use is 2382 x 768, so this one may not be the right size for some of you. I've attached a thumbnail below, because I can't attach the whole image due to file size. The link for the full size image is http://home.comcast.net/~reitanospa/junk/Sydney.jpg
Please note that this image was taken from wikipedia (http://commons.wikimedia.org/wiki/Image:Sydney_Harbour_Bridge_night.jpg) and was modified from its original 6400 pixel width. The image is posted so that "Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts." That is, you may use it as your wallpaper.
I found more than a few great wallpapers for my dual screen setup here.
