My current, cluttered desktop.

The ships are Starfuries from Babylon 5 - the two in the background are Aurora-class, the one in the foreground a Thunderbolt-class. Their colors are those of the Flying Tigers, a real-life fighter squadron whose design was used on B5 for John Sheridan's personal Starfury.

I'm using it because I think it's cool. No reason needed beyond that, right?