Im building a shop for my server using the Essentials Bukkit Plugin Buy/Sell Sign's
and I thought once its done I will post it here. as there does't seem to be any good shops around.

Currently It is a large space with rows of items in categories such as
Natual Materials
Crafted Materials
Tools
Tansport
ETC

I am also making a Excel Spreadsheet to calucate costs relative to the items used in it

For eg the cost of a Minecart rail

Takes 6 iron ingots and one stick
a ingot takes 1 ore and 1 coal.
a stick is 2 planks
a plank is from a tree

So from the cost of a tree, and coal, and iron ore it will caculate how much a Rail is worth.