Is there an online vintage wine guide?

[angrymunky]

I have a couple bottles of different styles of wine (mostly reds) from France, Italy, and Napa Valley which are at least 20-30 years old and have been kept in great condition, but I don't want to have to take them somewhere to get a estimated worth. Does anyone know of a website where I could get a estimate or even a good book of wine listings?

[Georgia Peach]

http://www.thewinepriceguide.com

http://www.winevintageguide.com/index.html