After much trial and error, I finally figured out the perfects backgound...backgrounds-z.
I tried several different layouts, but I could not find one that looked good with the whole Team Urameshi. So instead, I decided to make one for each character. Right now I have four, but I am planning to make much more, since the actual layout is very simple. The background will probably change once a week or so.
The layout itself should fit all screen sizes (maybe not 800x600 resolutions). Feel free to express any questions, comments, or concerns.