I updated the server with a new plugin. iZone allows me to create protected cuboid regions of space. Essentially this will cut down on griefing in areas such as permanent homes or large scale projects. Unfortunately, I am the only one who can create zones but once it is created I can assign ownership to people so they can still edit the contents of their zone. 

Here are owner comands:

/zmod who 

shows who is in the same zone as you

/zmod list 

shows a list of all created zones (this one isn’t super useful for you guys)

If you’d like to know more about this plugin you can read more here:

http://forums.bukkit.org/threads/misc-izone-v5-4-a-zone-protection-system-new-edition-features.5781/

In addition i’m putting the finishing touches on the arena. I’m implementing a glass barrier to protect the combatants from outside influence. I’d hope people would be courteous and respect the players who are fighting. Anyone seen violating this can be permanently banned from the arena. But you guys wouldn’t do that :D

-Nik