DisplayFusion
If you like the multi-monitor desktop wallpaper support provided by UltraMon but can't afford USD39.95, you could either write your own, or you could check out Binary Fortress Software's DisplayFusion.
If you like the multi-monitor desktop wallpaper support provided by UltraMon but can’t afford USD39.95, you could either write your own, or you could check out Binary Fortress Software’s DisplayFusion.
I trialled UltraMon for 30 days, and I really like the extended task bar that they provide too.