I'd really like a plugin that marks you as "AFK" after you dont do any interactions in minecraft for a minute and what that does is makes you immune to all damage until you move personally. then when you are back and type or move yourself it takes off afk... id also like it so people couldnt push you when you had "AFK" applied.
http://forums.bukkit.org/threads/mech-afk-v1-5-an-advanced-afk-system-1000.27303/ try searching in the plugin list first before requesting