Bukkit Plugin Tutorial: Backup - A simple Backup Plugin
http://techhut.tv/
Features
-Automatically backups all the worlds, and plugins, and if enabled, ZIP's the folder.
-WorldEdit-Compatible Backup Structure.
-Writes worlds, players and plugins from memory to file before backing up.
-Worlds and plugins can be excluded using the configuration file.
-Support for the Permissions plugin, and variants of it, has various Permission Nodes.
-Supports manual backups, from either a player with the correct permissions, or the -console.
-Has the option to delete old backups, after there is a certain amount of backups.
-Option to only backup when players are active on the server, set in configuration.
-Date format for back name is customizable in settings.
-Strings are fully customizable, so localization and small changes are easy!
-Full support for colours in strings