I made this arena as a Capture the Flag (CTF) map. I made this using WorldPainter and this is actually the fifth try. There is two team spawns in this map. Red and Blue. Enjoy!
Feel free to add this to your server without adding credit, BUT you can not say you made it.

Download Instructions
Installing On A Bukkit Server Using WorldEdit.

1) Make sure you have WorldEdit.jar Installed (If not, install it and run server)
2) Download this schematic.
3) Drop this file in your WorldEdit schematics folder. (if there is no schematics folder make one)
4) If server isn't up, open it ; If server is up, do /we reload

Installing Using SinglePlayerCommands.

1) Make sure you have SinglePlayerCommands installed.
2) Download this schematic.
3) Drop this file in schematics folder. (location: .minecraft/mods/spc/schematics)
4) If game isn't up, open it ; If game is open, do /we reload

A note: To reduce pasting lag, do //paste -a