I have found a way to quickly scan your entire auction house and export the information into a spreadsheet.
This information is a current snapshot of all prices on your auction house.
Using this data we can make a spreadsheet, when combined with a list of all the materials required to powerlevel a profession we can then insert our servers costs per unit and come to a total cost to level that profession from 1-450.
I made a spreadsheet of how much it'd cost to power level every profession and you can see them here and what else we are looking to do with this project.
http://www.wowconfidential.com/2010/...g-professions/
We will be working on a way to release this addon to the public so that you can export auctioneer or just auction house data to your own spreadsheet for whatever you want. Also we are developing a spreadsheet that you can dump your own server data into that will tell you the highest profit items you can craft with every profession, which items are lacking in supply that you can craft for the highest profit.
How much it costs on my server to power level every profession:
Jewelcrafting - 5,776g
Inscription - 4,671g
Enchanting - 7,692g
Alchemy - 2,563g
Blacksmithing - 4,609g
Engineering - 3,487g
Tailoring - 3,975g
Leatherworking - 7,128g