The other day I described the new GIO/GIB leveling costs via a spreadsheet.
Today, I'm making that part of the spreadsheet available to you. You are free to download it and spread the word to your friends.
The function of it is pretty simple, download it and follow the instructions.
NOW Hosted at Google Docs.
Hopefully you gain something from this or possibly find a hole in your market.
Patch 5.2 Blacksmith Calculator
Update: If you are getting a runtime error when copying the WoWuction data, Ctrl+Alt+F9 is a workaround to recalculate the data you pasted.