Daily Market prices and grain inventory program

[Daylate]

I was wondering if anyone knew of a site that had a program to put in your farms grain inventory and have it change daily with the current market prices. Or maybe someone here has did this with trading sites embedded into a spreadsheet.
Any info would be great.
I've always thought it would be neat if set up right. Not sure if i would have the sack to set a target and arrange a 100% inventory sale on 1 day.(will work better post CWB)

[buzz]

Seems like a neat idea, I have not seen
anything like that but did set up a stock
tracker once to watch some shares I had a
few years ago...