Look up the program UltraMon. It has a lot of nice features like picking a wallpaper to extend across both screens or you can set two different ones.
@ Skimy - Is that CentOS? Interesting you would use that on a Desktop system. Anyway, new wallpaper, new theme, tweaked conky.conf:
People have been asking Vir4l about his theme, and he told me to let everyone know how to get it... So here it is!