I love running dual monitors.
I love finding neat dual-monitor desktop wallpapers that highlight the beauty of them.
Graphic artist KoL (Javier Ocasio) has to be one of the best dual-screen masters of computer-generated desktop vistas.
His creations expand on the grassy fields and sky theme in XP, and dish it up with a fun quirkiness.
Check his works out:
Retro World (my current desktop of choice). I love the "antique" coloring used.
More beautiful stuff over at StudioTwentyEight.
Go get some!