HPM-Board

my suggestion is that you should get the skd mod
in this mod if you have gold and you place it in your crafting bench i will make coins i think this will be very useful for buying things in shops
also there are guns scuba gear etc its very usful

This would only work on singleplayer, it's a mod not a plugin.

Actually, there is a multiplayer version. The problem is that guns are kind of pointless
in Minecraft and it conflicts with Bukkit...

but there are some useful things like the gold coins and scuba gear also grappling hook

http://www.youtube.com/watch?v=gzRR118BXpo OMG this is EPIC