Automating the web, or at least what you do on it is finally here with iMacros from iOpus
Free for download as a Firefox add-in:
http://www.iopus.com/imacros/firefox/ [1]
Need more convincing? Check out these demos:
http://www.iopus.com/imacros/support/ [2]
(especially the ones around extraction)
Links:
[1] http://www.iopus.com/imacros/firefox/
[2] http://www.iopus.com/imacros/support/