Don't think this mod exists for forge yet but I think it would be cool to have a mod that randomly generates loot (based on lists made in a config files) for select chests.
So basically a forge version of the Bukkit Loot mod (Also like the DayZ chests in the DayZ mod but allow users to configure what can generate in them including modded items and weapons)
Here is the Bukkit Loot mod.
http://dev.bukkit.org/server-mods/loot/