Is there a plugin for area chat. You can only chat with people in a defined radius? Also is there a plugin for like say i would have made a custom mine. And when people mine it the ore runs out. Can i then run a command and it resets back to the ores? Are there plugins for these two features? In that case please put them down below
Almost any (good? ;D) chat plugin has got a radius feature, e.g. EssentialsChat and ChatManager (comes with PermissionsEx). And for this mine thing you can use this plugin: http://dev.bukkit.org/server-mods/prisonmine/
Use essentials as it has what your looking for and many more great features. As for resetting ores in a area just use world edit. You can use //regen to regenerate the land to it's original state, or save the mine as a snapshot and paste it in each time.